User's Guide

Chapter 29 Troubleshooting
NWA/WAC/WAX Series User’s Guide
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I cannot upload the firmware uploaded using FTP.
The Web Configurator is the recommended method for uploading firmware in standalone mode. For
managed Zyxel Devices, using the NCC or AC is recommended. You only need to use FTP if you need to
recover the firmware. See the CLI Reference Guide for how to determine if you need to recover the
firmware and how to recover it.
29.4 Internet Access
Clients cannot access the Internet through the Zyxel Device.
1 Check the Zyxel Device’s hardware connections, and make sure the LEDs are behaving as expected
(refer to Section 3.2 on page 34). See the Quick Start Guide and Section 29.2 on page 252.
2 Make sure the Zyxel Device is connected to a broadband modem or router with Internet access and
your computer is set to obtain an dynamic IP address.
3 If clients are trying to access the Internet wirelessly, make sure the wireless settings on the wireless clients
are the same as the settings on the Zyxel Device.
4 Disconnect all the cables from your Zyxel Device, and follow the directions in the Quick Start Guide
again.
5 Reboot the client and reconnect to the Zyxel Device.
6 If the problem continues, contact your ISP.
The Internet connection is slow or intermittent.
1 There might be a lot of traffic on the network. Look at the LEDs, and check Section 3.2 on page 34. If the
Zyxel Device is sending or receiving a lot of information, try closing some programs that use the Internet,
especially peer-to-peer applications.
2 Check the signal strength using the NCC, AC, Zyxel Device Web Configurator, or the client device itself.
If the signal is weak, try moving the client closer to the Zyxel Device (if possible), and look around to see
if there are any devices that might be interfering with the wireless network (microwaves, other wireless
networks, and so on).
3 Reboot the Zyxel Device using the Web Configurator/CLI or the NCC or AC.
4 Check the settings for QoS. If it is disabled, activate it. When enabled, raise or lower the priority for some
applications.