Cisco Cisco 2106 Wireless LAN Controller

CSCsl24600—The 1000 series access points might experience multiple “Watch Exception” errors.

Workaround: None.

CSCsl48639—An IP address can be configured on a dynamic interface on a controller when that IP 
address has already been assigned to another device on the network.

Workaround: Check the ARP table on the switch to see if the IP address is bound to a MAC address 
on the network that is not the controller MAC address.

CSCsl79765—When connected to a controller, 1230 series access points containing AIR-MP31G 
radios sometimes disable the radios and report that no channel is available.

Workaround: Contact Cisco TAC for more information. A Cisco internal-only procedure can be used 
to update missing environment variables and burn them into a cookie.

CSCsm65043—1240 series access points might stop accepting new clients. In this case, the show 
controller d1 command shows the following:

Beacon Flags: 0; Beacons are disabled; Probes are disabled

Workaround: Reboot the access point.

CSCsm96105—The controller does not pass traffic to a client device with a MAC address beginning 
with 00:00:00:00. This issue occurs with both WGB and wireless clients.

Workaround: None.

CSCso50723—When you use the controller's local RADIUS server for EAP-FAST authentications, 
authentication might fail if your client already has a protected access credentials (PAC) for the 
controller to which you are authenticating.

Workaround: Remove the PAC from the client.

CSCso79135—After an initial reboot of the Cisco WiSM or after the online insertion and removal 
(OIR) of the Cisco WiSM line card, the output of the show wism status CLI command on the 
Catalyst 6500 series switch shows that the service port is down, even if it is pingable. Wireless 
functionality is not impacted.

Workaround: Follow these steps:

Enter this CLI command on the Cisco WiSM to remove the service VLAN: no wism 
service-vlan vlan_id.

Enter this command to OIR the Cisco WiSM: hw-module module slot reset.

Enter this CLI command to add the service VLAN again: wism service-vlan vlan_id.

CSCsq26051—When a Cisco terminal server connects to the controller but the user is not logged in 
through the console, the controller might hang after a reboot.

Workaround: Remove the console connection cable from the Cisco terminal server.

CSCsr39682—Some access points (such as the 1231, 1240, and 1250) might run out of memory 
soon after restarting with the latest access point code received from the controller. The access points 
report low memory and refuse CLI changes.

Workaround: Disable infrastructure management frame protection (MFP).

CSCsr53764—When workgroup bridges (WGBs) are installed on a train and clients joined to the 
WGBs are running some type of application, the WGBs roam very quickly between access points, 
and some wired clients might become stuck at a specific access point.

Workaround: Reset the WGBs, enter the clear bridge command on the WGBs, or wait for the WGBs 
to roam back to the access point where the client is stuck.

CSCsu49139—The config prompt CLI command makes the controller unusable.