Ericsson W21 Fixed Wireless Terminal for WCDMA/HSDPA Mobile Networks User's Guide Software Release 1.
Ericsson W21 Fixed Wireless Terminal for WCDMA/HSDPA Mobile Networks User's Guide . Copyright © Ericsson AB 2007 – All Rights Reserved Disclaimer No part of this document may be reproduced in any form without the written permission of the copyright owner. The contents of this document are subject to revision without notice due to continued progress in methodology, design and manufacturing. Ericsson shall have no liability for any error or damage of any kind resulting from the use of this document.
Introduction Contents 1 Introduction 4 1.1 Structure of this Guide 4 1.2 Product Overview 5 1.2.1 Indicators 6 1.2.2 Connectors 7 2 Configuration and Management 8 2.1 Access and Login to the Web User Interface 8 2.1.1 Inactivity Timeout 9 2.2 Overview 10 2.2.1 Change Default Password 11 2.2.2 Alarms 11 2.2.3 Network Information 12 2.3 Configuration Wizard 14 2.3.1 Internet Access 14 2.3.2 Wireless LAN Access 16 2.3.3 Wireless LAN Authentication 20 2.3.
Introduction 2 2.6.1 Enable WLAN 35 2.6.2 Region 36 2.6.3 Radio Channel 36 2.6.4 Transit Power [dBm] 36 2.6.5 Scan for Wireless Networks 36 2.6.6 Network Name (SSID) 37 2.6.7 WLAN Security 38 2.6.8 Connected Devices 40 2.6.9 Whitelist 40 2.7 NAT 42 2.7.1 UPnP IGD 42 2.7.2 Application Level Gateways 43 2.7.3 Port Forwarding 43 2.8 File and Printer Sharing 47 2.8.1 How it Works 47 2.8.2 Host Name and Workgroup 48 2.8.3 File Sharing 48 2.8.
Introduction 3.2.2 Install the Wireless LAN Interface 62 3.2.3 Configure Access to the Ericsson W21 62 3.3 Sharing Settings 62 3.3.1 Check Workgroup Settings 63 3.3.2 Access a Shared Storage Device 64 3.3.3 Set Up a Connection to a Shared Storage Device 64 3.3.4 Access a Shared Printer 65 4 Troubleshooting 68 4.1 Restart the Ericsson W21 68 4.2 Reset the Ericsson W21 to Factory Default Settings 68 4.3 No Access to Ericsson W21 Web Pages 69 4.4 No Internet Access 70 4.
Introduction 1 Introduction This chapter describes the structure of this guide and gives a brief product overview. 1.1 Structure of this Guide This User’s Guide contains information that is needed to configure and manage the Ericsson W21 Fixed Wireless Terminal (FWT). The following chapters are included: 4 • Chapter 1 – “Introduction” – provides information about this guide and gives a brief product overview.
Introduction 1.2 Product Overview The Ericsson W21 is an advanced small office and home router with wireless Internet access. The key benefits of the product are: • Wireless Broadband Services at Reliable High Speed The Ericsson W21 uses WCDMA/HSDPA radio access to provide highspeed data capabilities to the local network. • Advanced Networking The Ericsson W21 supports an advanced local network setup. It provides IP routing, Ethernet switching, DHCP service, and NAT.
Introduction 1.2.1 Indicators The Ericsson W21 is equipped with five status indicators located on the front panel of the unit. A general description of each indicator is provided in the following table (from top to bottom): Table 1 Front Panel Indicators Text Status Description Power Green Unlit Mains powered. Power is off. Mobile Network Green Red Flashing Unlit Connection to a UMTS network. Connection to a GSM network. Searching for a connection. No connection to the mobile network.
1.2.2 Connectors The connectors on the Ericsson W21 are positioned as shown in the following illustration: Figure 2 - Connectors' panel A description of each connector is provided in the table below: Table 2 Connectors Label Description 10-28 VDC Power input for connecting the provided power supply adapter. Reset Button used to restore the Ericsson W21 configuration to factory default settings.
Configuration and Management 2 Configuration and Management When the physical installation of the Ericsson W21 is finished (as described in the Quick Installation Guide), the internal Web User Interface (WUI) is available for configuration and status control. This chapter provides detailed information about configuration and management of the Ericsson W21 using the WUI. 2.
Configuration and Management The WUI is available in four languages; English, German, Spanish and French. Click on corresponding country flag to change to the preferred language. The preconfigured login “User name” and “Password” is both user. You are recommended to change the password, see section 2.2.1 – Change Default Password. Type user in both the “User name” and “Password” fields and click the Log In button. After a successful login, the Overview page is displayed, see section 2.2 – Overview. 2.1.
Configuration and Management 2.2 Overview The Overview page gives an overview of the settings on the Ericsson W21 as described below. Figure 6 - Overview page The Overview page provides the following functions: 10 • The possibility to change password using the Change Password button in the upper right corner. See section 2.2.1 – Change Default Password.
Configuration and Management • The “NETWORK INFORMATION” section where the most important connection status information is collected. This information (among others) is also found on the Internet and LAN web pages respectively. Each page in the WUI also includes a Logout button (above the left-hand menu). 2.2.1 Change Default Password For security reasons you are recommended to change the preconfigured password. Follow the steps below to change the password: 1.
Configuration and Management Events that generate an alarm are such that make it impossible to send or receive data, e.g. SIM card missing. If there are no alarms currently detected the text "No alarms detected" is displayed. If an alarm is detected, the Alarm indicator on the Ericsson W21 front panel is lit (red), and the corresponding cause is displayed according to the table below: Table 3 - Alarm cause description 2.2.
Configuration and Management Table 4 - Network information (Internet) description Text/symbol Description The mobile network (UMTS or GSM) signal quality available at the Ericsson W21 location. This signal quality affects the performance of the unit. If two or more bars are green, the connection is usually acceptable. IP Address The IP address automatically assigned to the Ericsson W21 by the mobile network. Connection The radio access technique currently used to enable Internet access.
Configuration and Management 2.3 Configuration Wizard The Configuration Wizard guides you step by step through the basic setup of the mobile network connection and optionally for the Wireless LAN access point. Note: Throughout the wizard web-pages, only enter details that you have received from your service provider and leave other fields empty. Click the Configuration Wizard… button on the Overview page to start the wizard. 2.3.
Configuration and Management Normally, you have to enter the PIN to activate the Ericsson W21 data services. In some cases however, authentication is not required and it is possible to use the services without entering any PIN. Type the PIN in the “PIN” field. Thereafter, you can select the “Remember my PIN” check box. This makes SIM authentication automatic and you will not have to enter the PIN in case of a system restart. Click Next to proceed. 2.3.1.
Configuration and Management Note: If you have not received any PPP Authentication details from your service provider, leave the fields empty and click Next . Figure 10 - Internet Access: PPP User Authentication page Type the authentication details you have received in the “PPP user name” and “PPP password” fields. Click Next to proceed. 2.3.2 Wireless LAN Access The second part of the Configuration Wizard includes configuration of the Wireless LAN (WLAN).
Configuration and Management Figure 11 - Wireless LAN: WLAN Access Point page To enable connection of one or more wireless devices to the Ericsson W21, select the “Enable WLAN” check box. Click Next to proceed. Note: The WLAN interface will not be activated until the complete configuration details are entered. If you are not going to set up any Wireless LAN, just leave the box unchecked and click Next .
Configuration and Management To confirm the settings and close the Configuration Wizard, click the Finish button. You can use the Previous button to go back to previous pages and check your settings and/or make changes. If you click the Cancel button, the Configuration Wizard closes and no changes are saved. 2.3.2.2 Region To make sure the Ericsson W21 operates on correct radio frequencies according to local regulations, you have to state in which region you reside.
Configuration and Management Figure 14 - Wireless LAN: Radio Channel page Select either “Auto” (recommended) or a specific channel number from the “Radio channel” drop-down list. Click Next to proceed. 2.3.2.4 Network Name All devices on the local wireless network share a common Service Set IDentifier (SSID) or network name.
Configuration and Management Figure 15 - Wireless LAN: Network Name (SSID) page The network name is case-sensitive (distinguish between uppercase and lowercase letters) and can be changed to any combination of numbers (0 – 9), letters (a – z), and hyphens (-) with a maximum length of 32 characters. If the SSID broadcast option is enabled, your local wireless device(s) will find the network name when scanning the air.
Configuration and Management Figure 16 - Wireless LAN: Authentication page Select one of the authentication methods from the “Authentication” dropdown list. The available options are as follows: • None; f you select “None” as authentication method no client configuration is needed but be aware of that the WLAN will now be open without any kind of security. • WEP (64 bit), WEP (128 bit); WEP (Wired Equivalent Privacy) is considered to be a low security option.
Configuration and Management 2.3.3.1 None If you select “None”, the last page of the wizard, where you can review and confirm your settings, is displayed: Figure 17 - Configuration Wizard Confirmation page To confirm the settings and close the Configuration Wizard, click the Finish button. You can use the Previous button to go back to previous pages and check your settings and/or make changes. If you click the Cancel button, the Configuration Wizard closes and no changes are saved. 2.3.3.
Configuration and Management Figure 18 – Wireless LAN: WEP (64 BIT) page Figure 19 – Wireless LAN: WEP (128 BIT) page Enter an encryption key in the “Encryption key:” field. Click Next to proceed. 2.3.3.3 WPA/WPA2 Passphrase WPA and WPA2 authentication and encryption require a passphrase. Each device on your wireless network has to be configured with the same passphrase as the Ericsson W21. The encryption master key is derived from the passphrase and the network name (SSID) of the device.
Configuration and Management A WPA or WPA2 passphrase is case sensitive and consists of between 8 and 63 optional characters. It is recommended that the passphrase contains at least 20 characters. Figure 20 – Wireless LAN: WPA page Figure 21 – Wireless LAN: WPA2 page Type a unique passphrase in the “Passphrase” field. Note: Avoid using special characters (such as :, “ and ¤) when entering a passphrase. Click Next to proceed.
Configuration and Management 2.3.4 Configuration Wizard Confirmation On the last page of the Configuration Wizard, the Internet and Wireless LAN settings are displayed: Figure 22 - Configuration Wizard Confirmation page To confirm the settings and close the Configuration Wizard, click the Finish button. You can use the Previous button to go back to previous pages and check your settings and/or make changes. If you click the Cancel button, the Configuration Wizard closes and no changes are saved.
Configuration and Management 2.4 Internet The Internet web page includes status information and settings for the connection to the mobile network: Figure 23 - Internet page 2.4.1 Mobile Network Connection Details The Ericsson W21 connects to the UMTS (3G) network when it is available and uses the GSM/GPRS/EDGE (2G) network as fall-back.
Configuration and Management Table 6 - Mobile Network connection details Text/symbol Description The mobile network (UMTS or GSM) signal quality available at the Ericsson W21 location. This signal quality affects the performance of the unit. If two or more bars are green, the connection is usually acceptable. 2.4.2 Link Status The Internet access status, either Up or Down. If the link is up, connection is established.
Configuration and Management packets. Error The number of invalid data packets. Overruns The number of packets lost due to too many incoming data packets. Dropped The number of dropped data packets. Note: 2.4.3 The data size and packet counters have the upper limits of 4 GiB and 232 packets (more than 4 billion packets). When these limits have been reached, the counters wrap around to zero. Authentication Internet access requires authentication of the Ericsson W21.
Configuration and Management configuration, fill in the appropriate fields and click Apply to save the settings. Note: 2.4.4 Only enter details you have received from your service provider and leave other fields empty. Unblock SIM Card If three attempts have been made with an incorrect PIN, the SIM card is blocked and the Unblock SIM button is displayed beside the “PIN” field. The PUK code is needed to unblock the SIM card.
Configuration and Management Figure 25 - Change PIN page Type the current and new PIN in the corresponding fields and click OK to save the settings.
Configuration and Management 2.5 LAN The LAN (Local Area Network) page includes settings for the connection between the Ericsson W21 and other local devices, traffic statistics as well as status on the physical LAN ports. Figure 26 - LAN page 2.5.1 LAN IP Address The LAN IP address and subnet mask of the Ericsson W21 is used for connections to clients on the LAN/WLAN.
Configuration and Management Table 9 - LAN page description Text Description IP address The LAN IP address of the Ericsson W21. Subnet mask The subnet mask, which determines the range of IP addresses on the subnet. The LAN IP address and subnet mask can be changed, but before you do this, consider the following: • Make sure that the new address is not included in the DHCP server IP address range, displayed in the “DHCP Server” section. The default range is 192.168.1.2 – 192.168.1.100.
Configuration and Management Table 10 - DHCP Server configuration options Text Description Enable DHCP server Select this checkbox to enable the DHCP server. Note: If you already have a DHCP server on your network, you should disable this feature in the Ericsson W21. IP address range from: IP address range to: Lease Time [sec] The IP addresses that can be assigned to LAN/WLAN clients are collected from a predefined range of available IP addresses. The preconfigured range – from 92.168.1.2 to 192.168.
Configuration and Management 2.5.3 Traffic Statistics The following information is displayed in the “TRAFFIC STATISTICS” section on the LAN page: Table 11 - LAN Traffic Statistics description Text Description Transmitted The total size (and number) of transmitted data packets on the LAN. Received The total size (and number) of received data packets on the LAN. Note: 2.5.4 The data size and packet counters have the upper limits of 4 GiB and 232 packets (more than 4 billion packets).
Configuration and Management 2.6 Wireless LAN A Wireless LAN (WLAN) is a local network that communicates through wireless connections. The Ericsson W21 can be used as a WLAN Access Point (AP), connecting to wireless PCs according to the IEEE standard 802.11b/g, providing Internet and LAN access. The WLAN settings are displayed on the Wireless LAN web page. To ensure the security of your Wireless LAN, you are recommended to change the default settings for SSID and authentication.
Configuration and Management 2.6.2 Region Wireless devices are thoroughly regulated and the countries have slightly different regulations. Therefore, the geographical region where the Ericsson W21 is used must be stated to make sure the correct radio frequencies are used when transmitting data. Select the geographical region in which you reside from the “Region” dropdown list and click Apply to save the setting. 2.6.
Configuration and Management Figure 29 - Scan for wireless networks page The list displays the following information about wireless networks that are nearby: Table 12 - Scan for wireless networks description Text Description MAC Address The MAC address of the access point for the WLAN. Network Name The network name (SSID) of the WLAN. Channel The radio channel used by the WLAN.
Configuration and Management Table 13 - Network name description Text Description Network name (SSID) The network name (SSID) of the WLAN. The network name is case-sensitive (distinguish between uppercase and lowercase letters) and can be changed to any combination of numbers (0-9), letters (a-z), and hyphens (-) with a maximum length of 32 characters.
Configuration and Management 2.6.7.1 None If you select “None” as authentication method no client configuration is needed but be aware of that the WLAN will now be open without any kind of security. For example, it is now possible for anyone with a computer and a wireless interface card to connect to the Ericsson W21 at any time and having access to both your home network and Internet connection. 2.6.7.2 WEP and WEP Encryption Key WEP (Wired Equivalent Privacy) is considered to be a low security option.
Configuration and Management characters. It is recommended that the passphrase contains at least 20 characters. Enter a passphrase in the “Passphrase / Key” field and click Apply to save the settings. Note: 2.6.8 Avoid using special characters (such as :, “ and ¤) when entering a passphrase. Connected Devices The “CONNECTED DEVICES” list includes the MAC (Media Access Control) addresses of all wireless devices currently connected to the Ericsson W21. 2.6.
Configuration and Management 2.6.9.2 Find a Wireless Client MAC Address The MAC address for a WLAN adapter is normally found on the product label. For internal wireless PCI cards running on Windows platform, the command ipconfig /all (run from a Command Prompt window) can be used to display the MAC address (displayed as “Physical Address” against the network adapter). For example: Ethernet adapter Local Area Media State . . . . Description . . . . 3945ABG Network Connection Physical Address. .
Configuration and Management 2.7 NAT The Ericsson W21 includes a NAT (Network Address Translation) service. With this service several computers on a LAN/WLAN can share the same Internet connection using a single public IP address. Devices on the LAN/WLAN use dedicated private IP addresses, which cannot be used on the Internet.
Configuration and Management applications and the local network. When UPnP IGD is enabled, programs ® like MSN Messenger and most network enabled games are allowed to pass the NAT service. UPnP IGD is enabled by default, but if you want to disable the feature, clear the “Enable UPnP IGD” check box and click Apply to save the setting. 2.7.
Configuration and Management allowed. For more information on public and private IP addresses, contact your service provider. When a computer on the Internet sends data to the public IP address of Ericsson W21, it needs to know what to do with the data. A port forwarding rule tells the Ericsson W21 which computer on the local area network to send the data to.
Configuration and Management Select a “Protocol” from the drop-down list and type the appropriate values in “NAT Port”, “Server IP”, and “Server Port” fields and click Apply to save the settings. Below are some examples of common applications and corresponding Server Port they use for network access. The NAT port has often the same value as the Server value.
Configuration and Management Figure 32 - Port forwarding example 2.7.3.3 Edit Port Forwarding Rule To edit a port forwarding rule, click Edit next to the rule to edit. The Edit Port forwarding page is displayed: Figure 33 - Edit Port forwarding page Change one or more value(s) in the “Protocol”, “NAT Port”, “Server IP”, or “Server Port” field(s) and click Apply to save the settings. 2.7.3.4 Delete Port Forwarding Rule To delete a port forwarding rule, click Delete next to the rule to be deleted.
Configuration and Management 2.8 File and Printer Sharing The Ericsson W21 supports local network storage and printer sharing. It is possible to have two USB storage devices or one USB storage device and one USB printer connected to the Ericsson W21 at the same time. If an external hub is connected, the Ericsson W21 supports connection of up to two storage devices and one printer at the same time.
Configuration and Management device. The Ericsson W21 then makes the smb service use the new configuration, thereby sharing the USB device via the SMB/CIFS protocol. This process is totally automatic and there are not configuration parameters that can be set, other than renaming the shared resources. The Ericsson W21 uses a relatively low powered processor and is not designed to be a multi tasking platform.
Configuration and Management The file system on a shared partition needs to be of a supported type; otherwise the automatic mounting of the device will not work. Currently the supported types are: • FAT; Microsoft legacy file system from MS-DOS with 8.3 character filename • FAT32; Microsoft Windows 95 file system based on FAT but with long file name • ext2; Second extended file system, the standard Linux file system. • ext3; Like ext2, but with journaling support.
Configuration and Management Table 18 - Shared printer description Text Description Printer The manufacturer’s name of the printer. Share name The name of the shared printer used when accessing it from a PC on the LAN/WLAN. To give a network printer a specific name, type a name in the “Share name” field and click Apply to save the setting. Note: If a “Share name” has more than 12 characters or has embedded spaces, the share will not be visible to Windows 95, 98 or ME clients.
Configuration and Management 2.9 System The System page includes system information and management functions, used to update and restore the Ericsson W21.
Configuration and Management 2.9.1 Basic System Information The table on top of the page includes basic system information about the Ericsson W21. The following information is displayed: Table 19 – Basic System Information 2.9.2 Text Description Product The product name. Product Id: The product identification. Serial number: The unique serial number of the unit. Boot loader: The ID and version of the boot loader software. Application software: The ID and version of the application software.
Configuration and Management 2.9.2.2 Restore from Backup File If you wish to revert to previous settings, you can perform a configuration restore from a previously stored backup file. To restore from a configuration file, click the Browse… button in the “CONFIGURATION BACKUP AND RESTORE” section on the System page to locate the configuration file. When a file has been selected it is displayed in the text field below “Restore to previous settings from a configuration backup”.
Configuration and Management When the restart is completed you have make a new login to the WUI. Type http://192.168.1.1 in the Address (URL) field to display the User login page. 2.9.4 Software Update New Ericsson W21 software versions can be either automatically or manually installed. 2.9.4.1 Automatic Software Installation If your service provider supports the feature for Automatic software update, this is enabled in the “SOFTWARE UPDATE” section on the System page.
Configuration and Management Click For a description of the update please follow this link to get information about the software version or click Yes to install the new version. When you click Yes the update process is initiated and the following page is displayed: Figure 39 - Software Update initiated page The information on this page is updated every tenth second. When the upgrade is finished, click Restart to restart the Ericsson W21. 2.9.4.
Configuration and Management 2.9.5 Factory Reset The Ericsson W21 configuration can be reset to its factory default settings from the System page. Note: If the WUI is not accessible, a reset to factory default settings can also be done using the Reset button on the unit. See section 4.2 – Reset the Ericsson W21 to Factory Default Settings. To reset the configuration to factory default settings, click Reset in the “FACTORY RESET” section on the System page.
Configuration and Management 2.10 Event Log On the Event Log page, a list of the events that has been sent to the Ericsson W21 log is displayed: Figure 42 - Event Log page Each row in the log list displays the time and date when an event was reported to the log, the type of the event, and a brief statement indicating its cause. Note: If the actual time is not available, the timestamp is set to “Jan 1 00:00:00” when the Ericsson W21 is restarted. This will change to actual time when available.
Configuration and Management The system logging information is written to 3 files in the system and these files are rotated in a circular fashion. The files are not saved to flash memory and will be lost when rebooting the system or when power is disconnected. To view only a selection of the log events in the list, select a filter level from the “Display” list. Available log levels are “Alarms only” and “All”.
PC Configuration 3 PC Configuration The connection to the Ericsson W21 may require specific PC configuration. This chapter includes instructions on how to configure Internet Protocol (IP) settings, establish wireless connection(s) with the Ericsson W21 and access a shared network printer. The descriptions include examples from Windows XP and 2000. If you use another operating system, please refer to the system documentation or online help. 3.
PC Configuration 4. Select Internet Protocol TCP/IP and ensure that the check box beside the text is selected. Click Properties . 5. In the Internet Protocol (TCP/IP) Properties window, select Obtain an IP address automatically and Obtain DNS server address automatically. 6. Click OK twice to confirm your changes and close the windows, and then close the Control Panel window. 3.1.1.2 Windows 2000 First, check for the IP protocol and, if necessary, install it: 1.
PC Configuration 10. In the Network and Dial-up Connections window, right-click the Local Area Connection icon, and then click Properties. 11. Select Internet Protocol TCP/IP and ensure that the check box beside the text is selected. Click Properties . 12. In the Internet Protocol (TCP/IP) Properties window, select Obtain an IP address automatically and Obtain DNS server address automatically. 13. Click OK twice to confirm your changes and close the windows, and then close the Control Panel window. 3.1.
PC Configuration 3.2.2 Install the Wireless LAN Interface Each PC on your Wireless LAN must be fitted with a Wireless LAN interface, such as a wireless network card. You also have to install the corresponding driver files for your particular Wireless LAN interface on your PC. The driver files and instructions on how to install them are provided together with the interface. 3.2.
PC Configuration In some cases, you have to make sure that your PC belongs to the same workgroup as the Ericsson W21. Follow the instructions in the next section to check the workgroup on your PC. 3.3.1 Check Workgroup Settings The following sections include instructions on how to check the workgroup settings on a PC using Windows XP or 2000. 3.3.1.1 Windows XP Follow the steps below to check the workgroup settings on a PC using Windows XP: 1.
PC Configuration 2. Double-click the System icon. The System Properties window is displayed. 3. On the Network Identification tab, click Properties . The Identification Changes window is displayed. 4. Make sure that Workgroup is selected in the Member of section and that the name of the workgroup is exactly the same as on the Ericsson W21 Sharing page. If not, select the Workgroup option and type the name in the field.
PC Configuration 1. In the Windows task bar, click the Start button, and then click My Computer. The My Computer window is displayed. 2. From the Tools menu, select Map Network Drive…. The My Network Drive window is displayed. 3. Select a drive that is not already used from the Drive drop-down menu. 4. In the Folder field, type \\\ or click the Browse... button to locate the device. You find the host name and share name on the Ericsson W21 Sharing page. 5. Click Finish .
PC Configuration The Ericsson W21 supports two protocols for printing: Samba and RAW. The protocol that is used may vary depending on printer and manufacturer. It also affects how to access the printer via the Ericsson W21. The following sections include instructions on how to access a shared printer from a PC using Windows XP or 2000. 3.3.4.
PC Configuration 3. Select Add a printer. The Add Printer Wizard appears. Click Next> to proceed. 4. In the Local or Network Printer window, select Local printer attached to this computer and click Next> . 5. In the Select a Printer Port window, check Create a new port and from the Type of port drop-down list select Standard TCP/IP Port. Click Next> . 6. The Add Standard TCP/IP Printer Port Wizard opens. Click Next> to proceed. 7.
Troubleshooting 4 Troubleshooting This chapter describes how to solve a number of issues that could occur during installation, configuration, and use of the Ericsson W21. More information is available at www.ericsson.com/fwt. Before you try any of the methods described in this chapter, make sure that the connected cables are securely inserted and that the Power indicator on the Ericsson W21 is green. If none of the suggested methods solve your problem, you are recommended to: 1.
Troubleshooting 2. Use a tip of a pen to press the Reset button while reconnecting the power cable. Keep the Reset button pressed for at least 20 seconds. 3. The Ericsson W21 restarts and comes online with the factory default settings. Note: 4.3 A reset to factory default configuration cannot be undone. If you reset the Ericsson W21 to default configuration, all your previous configuration changes are replaced.
Troubleshooting 4.4 No Internet Access If you cannot access the Internet from any of your local devices, take the following actions to identify and solve the problem: 4.5 • On the Internet page, make sure that the Link status is Up and that an IP address is defined. • Make sure that the GSM/UMTS antenna is properly connected and tightened to the Ericsson W21 antenna connector. • Check the Alarm indicator on the front panel of the Ericsson W21 unit.
Troubleshooting • 4.6 On the Internet page, verify that the mobile network signal quality indicator displays at least two bars. If not, try to move the Ericsson W21 or attach an external antenna. No Access to a Certain Internet Application If you cannot access a certain Internet application or specific type of data, take the following actions to identify and solve the problem: 4.
Troubleshooting 72 • Move the Ericsson W21 to another location. Make sure that the mobile network signal is still acceptable before finalizing the installation. • Check that the “Transmit power [dBm]” on the Wireless LAN page is configured in accordance with your requirements on wireless network coverage. The maximum transmit power value is “20”. • Configure the Ericsson W21 Wireless LAN authentication method to Open. This will verify if the Wireless LAN connection is working without encryption.
Troubleshooting automatically (Auto) or manually change the radio channel currently used. • 4.9 Keep the Ericsson W21 away from electrical devices that disturb the radio signals, for example microwave ovens. Slow or Intermittent Wireless LAN Connection If your wireless connections to the local network are unacceptable slow or regularly dropping, take the following actions to identify and solve the problem: 4.10 • Move the Ericsson W21 to another location.
Jan 1 00:07:34 FWT user.notice kernel: Type: Direct-Access ANSI SCSI revision: 00 Jan 1 00:07:35 FWT user.notice kernel: SCSI device sda: 4013056 512-byte hdwr sectors (2055 MB) Jan 1 00:07:35 FWT user.notice kernel: sda: assuming Write Enabled Jan 1 00:07:35 FWT user.err kernel: sda: assuming drive cache: write through Jan 1 00:07:35 FWT user.notice kernel: SCSI device sda: 4013056 512-byte hdwr sectors (2055 MB) Jan 1 00:07:35 FWT user.notice kernel: sda: assuming Write Enabled Jan 1 00:07:35 FWT user.
Glossary Glossary 802.11b An IEEE standard for a wireless network that operates at 2.4 GHz with rates up to 11 Mbps. 802.11g An IEEE standard for a wireless network that operates at 2.4 GHz with rates up to 54 Mbps. 2G – Second Generation The second generation wireless communications technology, introducing digital voice encoding. Low speed data services are supported. 3G – Third Generation The third generation wireless communications technology.
Glossary network devices with a variety of information, such as IP addresses, required for their operation. DNS – Domain Name System (or Service) The distributed name/address mechanism used in the Internet. It comprises distributed online databases that contain mappings between human-readable names and IP addresses, and servers, which provide translation services to client applications.
Glossary serial number unique to every mobile device. The IMEI number is used by the mobile network to identify valid devices. IP – Internet Protocol A part of a suite of protocols that effectively defines the Internet as we know it. Specifies addressing and control information for routing data packets over networks. IP address The address of a host on the Internet, consisting of four numbers, each from 0 to 255, separated by periods, for example 192.168.1.1.
Glossary used to carry IP (and other protocol) data between the service provider and your computer. Private IP Address A private IP Address is typically assigned to a client on a LAN (Local Area Network) and is not used outside the LAN. Private IP addresses are typically used when multiple computers share the same Internet connection. Protocol A set of rules governing the transmission of data. In order for a data transmission to work, both ends of the connection have to follow the rules of the protocol.
Glossary TCP is responsible for dividing data up into packets for delivery and reassembling them at the destination. IP is responsible for delivering the packets from source to destination. When TCP and IP are bundled with higher-level applications such as HTTP, FTP, Telnet, and so on, TCP/IP refers to this whole suite of protocols. TFTP – Trivial File Transfer Protocol A TCP/IP protocol commonly used for software downloads. TKIP – Temporal Key Integrity Protocol A protocol used for WPA data encryption.
Glossary stronger data encryption method; TKIP. WPA data encryption is based on a WPA master key. The master key is derived from the passphrase and the network name (SSID) of the device. WPA2 – Wi-Fi Protected Access 2 An enhanced version of WPA. For data encryption, WPA2 uses AES instead of TKIP. WUI – Web User Interface In Ericsson W21 the WUI refers to a built-in web basaed configuration tool with wizard support.
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