1 - 4402 - 50ap WLAN Controller with code 18.104.22.168
1 - 2125- 25ap WLAN controller with code 5.2.157
35 - AP1010 access points
17 - 1100 series access points
I've told each access point which controller is its primary controller but after rebooting the controllers at the same time 13 of the 1100 series APs go to the 2125 controller & all the others go to the 4402 controller. Any ideas for me to check while I wait to the TAC to call me back?
Access points do not fail back to their primary controllers by default. You either need to reboot the AP or enable "AP Fallback Mode" on the Controller tab of the GUI. Enabling this mode forces an AP to go to its primary controller the moment it becomes available.
If you don't have this mode enabled, my guess is that the APs are associating to the first controller that comes up until they're both up, at which point they connect to their primaries.
Also, make sure you enter controller NAMES in the primary/secondary/tertiary slots, and not IP addresses.
The problem is the code you are running. 4.2.130 and 5.2.157?????? If the ap's did failover, then the ap would have to obtain the code of the controller it failed to. Also I bet your mobility is not up, which is also a requirement for ap fallback to work.
If you told TAC this, they would tell you to run the same code.
Yes, the only way I figured out to keep from having c0-channel interfernce with neighboring APs on different controllers is to power down the 2125 & reboot the 4402. Then 50 of the APs (all the 1010 series) will connect to the 4402 & the few others will connect to the 2125 when I bring it back up. I guess I will keep doing this until we can afford to upgrade the 1010 series APs to newer ones & then get the controller code on both controllers on the same page.
Ok, so why not just completely split these two systems. If you don't want the 1100's on the 4402, and the 1010's can't go to your 2125, why not just make these two completely different wireless systems?
Can you just make the two controllers in different networks (and make the related AP's in different networks)...?
OR could you just make sure the controllers are in different mobility groups and then make sure that each AP only has a primary controller defined?
What is your controller Discovery? Is it DNS? DHCP? Broadcast?