Radio Profile - channel selection auto - neighbor APs on same channel & running at Max power allowed.

[w1f1n00b]

I’ve been seeing many instances where APs are on the same channel as their neighboring AP with RSSI in the 60s or 70s. I’m looking for steps to take to prevent this that don’t require manual channel plans, as I have too many APs to manage in that manner (wish this wasn’t the case).

In this one example I’m trying to figure out why the two radios are showing drastically different channel costs. full disclosure, not really sure what these numbers mean or how they’re calculated so any info or resources are greatly appreciated.

Also of note, these Radio Profiles are set to auto power selection with max power of 14dB. There are 50+ APs at the site (apx every other room), yet every AP is running at power 14. none have adjusted power down at all. Is this typical? My understanding is that even if Co-channel and adjacent channel interference are minimized, RF should still be kept to minimum power necessary to avoid general interference.

[w1f1n00b]

@daniel.schickmair , thanks for sharing that. I hadn’t seen that document yet, but had been told this was coming. How did you find this doc? I’d love to stay on top of these types of posts so I’m in the loop. I’ve poked around the KB and Tech Docs but it’s tricky to navigate and I haven’t been able to find that doc aside from your link.

I’m also curious if this fix is going to have any affect on ACSP or DCS, as that is as big of a concern to me as Interference Alarms.

[daniel1]

At least for the high inference there should be a fix incoming: https://extremeportal.force.com/ExtrArticleDetail?n=000054239

[w1f1n00b]

from the sites I mentioned above, they’re all AP250, however I’m seeing similar issues with AP550 as well. This has been ongoing for at least 8 months (the false high interference even longer, I think a year+)

Site 1 -HiveOS 10.0r9a build-247125 (issue has been present through several firmware versions)

Site 2 -HiveOS 10.0r9a build-247125 (issue has been present through several firmware versions)

Site 3 -HiveOS 10.0r9a Nantucket build-250402-slnu-dev

[jose_gonzalez]

What firmware code, AP model(s) 250/650 are you seeing this DCS issue?  What is the development build firmware version from ‘show ver’?

[jose_gonzalez]