topic Troubleshooting Wireless Drop and Acquiring IP Address in Wireless

Troubleshooting Wireless Drop and Acquiring IP Address

mmedwid — Sun, 04 Jul 2021 00:51:44 GMT

I have users receiving strong singnal from the AP - a Cisco 1100. They might be working several hours when their connection drops and they see "acquiring IP address. This interrupts their work and there is unhappiness. Is there a good doc for troubleshooting this kind of issue? The users are using Dell Latitude D620 laptops. Thank-you.

Re: Troubleshooting Wireless Drop and Acquiring IP Address

cbaser007 — Fri, 24 Jul 2009 12:28:53 GMT

This may not be the culprit in your case, but I was bitten by Cisco bug CSCsq23961 this week on two 4402-12 WLC's running 4.2.130 code. The users have good signal, authenticate successfully against Radius, but never receive an address. I upgraded to the newest 4.2.xxx code as the fix, but the bug describes a workaround one can try in lieu of a code upgrade.

Re: Troubleshooting Wireless Drop and Acquiring IP Address

mat.edwards — Sat, 25 Jul 2009 06:19:28 GMT

Are you using a fat AP or with a WLC? Are the users exeriencing dropouts at the same time or are different users losing connection at different times? What do the AP/WLC Logs indicate at the time of disconnect? Have you scanned the air to determine other APs on adjacent channels/any non-802.11 interference?

Answer these qs and will help more.

Mat

Re: Troubleshooting Wireless Drop and Acquiring IP Address

George Stefanick — Sat, 25 Jul 2009 11:44:16 GMT

If you are using a control and you can time this issue use the debug client in the cli of the controller.

Also check session timeout on the controller