We are running several sites with 8540 WLC and a mix of legacy and up to date AP's
Currently we run 220.127.116.11 AireOS on all WLC's but we have had issues, especially with the 2800 ap's and false radar detection.
According to the release notes we shouldn't have these issues, but reallity prevails.
Here is a summary of our issues today:
In the TAC recommended releses 18.104.22.168 should be the obvious choice, but only one site has a range of access points that supports 8.5.xxx. Also I have seen some really nasty bug notices lately on the 22.214.171.124 release.
In the light of above information; should anyone recommend 126.96.36.199 relese, or should the 188.8.131.52 be sufficient?
I cannot find anything in the 184.108.40.206 regarding false radar detection that isn't fixed already in 220.127.116.11...
...but 18.104.22.168 does have two bug IDs (CSCvf38154, CSCvf21657) that isn't noted in the 22.214.171.124 release notes.
Any suggestion and advice are welcome.
Any reason why you haven't upgraded?
From which code did you upgrade to 126.96.36.199?
I have learnt from others that 8.5.xxx train will improve roaming performance compared with 8.3.xxx
What is your inpu?t
Appreciate the advice.
We will consider that or wait until a new maintenance release is release för 8.5 train. You are aware of this field notice? https://www.cisco.com/c/en/us/support/docs/field-notices/705/fn70577.html
Of course there are an Escalation release available for 8.5 as well, but the latest notifications suggest more work is needen on 8.5...
It says so in the field notice:
Affected Version Upgrade to this Version Comments
|AireOS 188.8.131.52 through 184.108.40.206||AireOS 220.127.116.11 or later||AireOS 8.5 MR6 Escalation, available from the Technical Assistance Center (TAC)|
|AireOS 18.104.22.168||AireOS 22.214.171.124 or later|
|AireOS 126.96.36.199 through 188.8.131.52||AireOS 184.108.40.206, 220.127.116.11 or later||AireOS 18.104.22.168 is available from the TAC|
|AireOS 22.214.171.124||AireOS 126.96.36.199 or later|
|AireOS 188.8.131.52 through 184.108.40.206||AireOS 220.127.116.11 or later||AireOS 8.10 MR2 Escalation, available from theTAC|
|Cisco IOS XE 17.1.1s||Cisco IOS XE 17.1.1t||For 9800 and EWC-AP|
|Cisco IOS XE 17.1.1s||Cisco IOS XE 17.1.1s ES||For Embedded Wireless Controller on switches|
|Cisco IOS XE 17.2.1||Cisco IOS XE 17.2.1a|
Thank you for your insights. Actually I have gotten feedback that the oldest legacy ap's have been replaced, so now we have a mix of mostly 2800. with a lower count of 2700 and 3500 series access points on the controllers in question. These are all supported in 8.5 tree. I am pretty sure that our best candidate is 18.104.22.168 or if a later maintenance release is provided. It will surely improve roaming performance if feedback from collegues are correct. Or should you recommend that we make a request for the 8.5.161.x Escalation release?