Well if it is your mobility that is bouncing on site 'C', do you know if it is due to one WLC that is dropping off... We had an issue similar to yours and we knew which one was dropping so we reloaded the code and configured it from scratch and that seemed to fix the issue. Since you have 3 WLC's, what you can try is to move all the AP's to WLC 1 & 2 and see if the issue goes away, then you can determine which WLC is causing the issue.... unless it is two of them... doubt it but you never know. Again... this will only work if you have enough room to move the AP's over to the other WLC's. I don't think it is a radius issue since you nitice this when the mobility group bounces... correct?
thanks, i think we will end up having to rebuild them. I tried associating one of the APs with a controller on the other site, but that didn't work. Although i've rebooted the WLC's I haven't tried downing one to see what happens.
We've only got 50 APs on each WLC so I'll try downing one at a time at the weekend. ughh more overtime.
You will have to unless someone knows of a bug id for this. Again... revie the logs and see if mobility goes down for a particular WLC.... you have enough room on the others to split the load. I would then test for a couple days or how long it usually takes before you see the problem. Then if you don't see the issue then put that WLC back in and remove another one untill either don't see the problem or you do find the bad WLC. If you really wanted to, I guess you can spend the weekend rebuilding all three as long as you don't upload the backup config:)