Примечания к выпуску для Cisco Cisco 2000 Series Wireless LAN Controller

This caveat has been closed in operating system release 4.0.179.8.

CSCsf03352—When you change the 802.11a channel on the root access point (RAP), the channel 
changes on the RAP but may not be propagated to the mesh access points (MAPs). As a result, the 
MAPs lose connectivity with the controller and never reconnect. This issue may occur if you 
upgrade your controller from software release 3.2.x.x to 4.0.155.5 or 4.0.179.8. 

Workaround: If you encounter this issue, perform one of the following:

Erase the controller’s configuration, reconfigure the controller, and allow the MAPs to rejoin 
the controller.

Power-cycle the RAP and MAPs.

If you need information about a specific caveat that does not appear in these release notes, you can use 
the Cisco Bug Toolkit to find caveats of any severity. Click this URL to browse to the Bug Toolkit:

(If you request a defect that cannot be displayed, the defect number might not exist, the defect might not 
yet have a customer-visible description, or the defect might be marked Cisco Confidential.) 

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.

 

This section lists updates to user documentation that has not yet been added to either printed or online 
documents.

The Package Contents section in the Quick Start Guide: Cisco 4400 Series Wireless LAN Controllers 
should be updated to include this item, which is included with the 4400 series controller:

DB-9 to DB-9 null modem cable