User's Manual
Table Of Contents
- AC1900 Cable Modem Voice Router
- 1. Hardware Overview
- 2. Connect to the Network and Access the Modem Router
- 3. Specify Your Internet Settings
- 4. Control Access to the Internet
- 5. Share USB Devices Attached to the Modem Router
- USB Storage Device Requirements
- Connect a USB Storage Device to the Modem Router
- Access a USB Drive Connected to the Modem Router From a Windows Computer
- Map a USB Device to a Windows Network Drive
- Access a USB Storage Device That Is Connected to the Modem Router From a Mac
- Control Access to the USB Storage Device
- Use FTP Within the Network
- View Network Folders on a USB Storage Device
- Add a Network Folder on a USB Storage Device
- Edit a Network Folder on a USB Storage Device
- Approve USB Devices
- Access the USB Storage Device Through the Internet
- Safely Remove a USB Storage Device
- 6. Share a USB Printer
- 7. Voice Telephone Lines
- 8. Specify Network Settings
- View or Change WAN Settings
- Set Up a Default DMZ Server
- Manually Configure LAN Switch Ports
- Change the Modem Router’s Device Name
- Change the LAN TCP/IP Settings
- Specify the IP Addresses That the Modem Router Assigns
- Disable the DHCP Server Feature in the Modem Router
- Manage LAN IP Addresses
- Improve Network Connections With Universal Plug-N-Play
- Use the WPS Wizard for WiFi Connections
- Specify Basic WiFi Settings
- Change the WiFi Security Option
- Set Up a Guest Network
- Control the WiFi Radios
- Specify WPS Settings
- 9. Manage Your Network
- Change the admin Password
- View Modem Router Status
- View the Battery Status
- View and Manage Logs of Modem Router Activity
- View Event Logs
- Run the Ping Utility
- Run the Traceroute Utility
- Monitor Internet Traffic
- View Devices Currently on the Network
- Manage the Modem Router Configuration File
- View Wireless Access Points in Your Area
- View or Change the Modem Router Wireless Channel
- Dynamic DNS
- Remote Management
- 10. Specify Internet Port Settings
- 11. Troubleshooting
- A. Supplemental Information
Specify Your Internet Settings
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AC1900 Cable Modem Voice Router
5. In the MTU Size field, enter a value from 64 to 1500.
6. Click the Apply button.
Your settings are saved.
If you suspect an MTU problem, a common solution is to change the MTU to 1400. If you are
willing to experiment, you can gradually reduce the MTU from the maximum value of 1500
until the problem goes away
. The following table describes common MTU sizes and
applications.
Table 2. Common MTU sizes
MTU Application
1500 The largest Ethernet packet size. This setting is typical for connections that do not use
PPPoE or VPN, and is the default value for NETGEAR routers, adapters, and switches.
1492 Used in PPPoE environments.
1472 Maximum size to use for pinging. (Larger packets are fragmented.)
1468 Used in some DHCP environments.
1460 Usable by AOL if you do not use large email attachments, for example.