ZyXEL Communications NWA3000-N User Manual page 248

Chapter 21 Troubleshooting
generate. If you have existing capture files you may need to set this size larger or delete existing
capture files.
The device stops the capture and generates the capture file when either the capture files reach the
File Size or the time period specified in the Duration field expires.
My earlier packet capture files are missing.
New capture files overwrite existing files of the same name. Change the File Suffix field's setting
to avoid this.
Wireless clients cannot connect to an AP.
• There may be a configuration mismatch between the wireless clients and the AP. or an incorrect
VLAN topology. See
management.
• The wireless client's MAC address may be on the MAC filtering list. See
147 for details on managing the device MAC Filter.
• The wireless client may not be able to get an IP:
Check the wireless client's own network configuration settings to ensure that it is set up to
receive its IP address automatically.
If the device or a connected Internet access device are managing the network with static IPs,
make sure that the server settings for issuing those IPs are properly configured.
Check the wireless client's own network settings to ensure it is already set up with its static IP
address.
• Authentication of the wireless client with the authentication server may have failed. Ensure the
AP profile assigned to the AP uses a security profile that is properly configured and which is
matches the security settings in use by the device. For example, if the security mode on the AP is
set to WPA/WPA2 then make sure the authentication server is running and able to complete the
802.1x authentication sequence. See
more.
• If you cannot solve the problem on your own, before contacting Customer Support use the built-
in wireless frame capture tools
more granular troubleshooting procedures. To use the built-in wireless frame capture tool, first
set up a second device nearby to act as a Monitor AP
The AP status is registered as offline even though it is on.
• Check the network connections between the device and the AP to ensure they are still intact.
• The AP may be suffering from instability. Disconnect it to turn its power off, wait some time, then
reconnect it and see if that resolves the issue.
• The CAPWAP daemon may be down. Use the device's built-in diagnostic tools and CLI console to
get CAPWAP debug messages which can later be sent to customer service for analysis.
248
Chapter 4 on page 49 for a simple primer on basic network topology and
Chapter 12 on page 135
(Chapter 18 on page
Section 12.3.3 on page
and Section 15.10 on page 200
229) to capture data that can be used for
(Chapter 9 on page 101).
NWA3000-N Series User's Guide
for