I have the following problem, I have 2 WLC 5520 in HA, with Access Point 2702i and 2802E, of which the APs 2802E are always kept at the maximum power, and APs that are side by side are in the same channel, being much co-channel interference.
The OS version of the WLC is 220.127.116.11
I hope you can help me. Greetings.
As you mentioned high power is configured on all the APs, is it manually configured on each and every AP?
Check out the Best practices Cisco WLC try to make the radio configurations as recommended and see if that help for you.
The document of best practices had already been applied at the time of the presentation of the failure, but still continues with the same problem.
Couple of things to check:
Has the 2802 converted to static power - i have seen this before
What antennas are connected to the 2802E
Recommend looking at upgrading the WLC version:
Also has a site survey been conducted to ensure that APs are not too close to each other