Cisco Cisco 2000 Series Wireless LAN Controller

CSCsd52888—When an access point’s default gateway changes, the access point disconnects from 
the controller.

CSCsd52912—UDP packets travel in only one direction during mobility.

CSCsd54797—The controller needs to drop invalid ARPs from STAs.

CSCsd62518—SNMP v1/v2 is not accessible after a controller’s configuration is cleared.

CSCsd72556—The controller does not retain a newly created admin username and password.

CSCsd73855—A contained rogue access point is reported as a missing trusted access point.

CSCsd80877—Image load protection needs to be implemented on the controller.

CSCsd85326—The 2000 series controllers do not track the latest Aeroscout tags.

CSCsd94967—Access points fail to join a controller when the network path MTU setting is 
configured for less than 1500 bytes.

CSCsd98255—Clients connected to a 4400 series controller cannot renew their DHCP IP address 
after a Layer 3 roam.

CSCsd99572—Some hand-held clients are unable to connect to a secure WLAN advertised by 
REAP access points.

CSCse04508—External web authentication does not operate properly. A wireless client using web 
authentication with DHCP must do a release/renew to logon. This issue occurs if the user associates 
to the guest SSID, obtains a DHCP IP address, and fails to open the web browser for 15 minutes or 
more.

CSCse15753—WCS hangs when adding a controller or refreshing a controller configuration when 
mobility anchors for a WLAN are added in non-numerical order, such as 1.1.1.2 and then 1.1.1.1.

CSCse23197—A client fails to get a DHCP IP address and the controller GUI becomes unresponsive 
when the client attempts to connect to a WLAN with web policy authentication.

For the most up-to-date, detailed troubleshooting information, refer to the Cisco TAC website at

Click Product Support > Wireless. Then choose your product and Troubleshooting to find information 
on the problem you are experiencing.

For additional information on the Cisco controllers and lightweight access points, refer to these 
documents:

The Quick Start Guide for your particular controller or access point