Frequent wireless disconnections occurring since upgrade to 10.21.01.0065

[Steve_Ballantyn]

I apologize for the redundant question. It seems like "clients disconnecting" is a common topic. But I am starting a new one, because it seems that every situation is different.

I have a C5210 and a bunch of 3825i AP's all over my hospital. Just before Christmas I upgraded to the latest firmware, 10.21.01.0065. Since then I am getting complaints from users (across the board) that they are frequently getting dropped from WiFi. After it happens they are easily able to reconnect and all is well. But it's driving them mad as they will be in mid-sentence documenting in their various applications and then it sort of freezes up and KAPOW! Connection lost!

There is nothing newer to upgrade to. And I suppose I could downgrade to see if the problems goes away. But I would rather seek out the source of the problem and fix it. Especially if it's just something wacky in my configuration.

I plan on putting in a call and opening a ticket on Monday morning with support. But in the meantime - does anyone have any ideas for me? I use Netsight and Purview, and I have all of these logs and diagnostic data at my disposal, but I am not really sure where to start. I suppose the first question is - does anyone else have this issue with this firmware?

[Steve_Ballantyn]

Also - for those following this issue, I finally got around to opening a case. That case number is: 01278662. I will let you all know what we figure out.

[Ronald_Dvorak]

The setting for event level has nothing to do with the station events.

If you go to...

> Logs > EWC: Events = the event level in the log config will change what kind of message level you'd see/stored on the EWC - that is for system/AP events - if you set it to major only major&critical events are shown

> Logs > EWC: Station Events = if it's enabled you'd see the client/MU events here

I set my controller to info/info BUT be aware that in an big deployment that would mean that the log will overwrite older events very fast - could be that you only see the last day/hours.
I allways enable station events on the controller - I didn't read about any negative impact on the system if you do that - also get's overwritten very fast if you've many clients.

The other 2 log settings... send to Netsight / as trap should be used carefully as that could result in a flood of messages to Netsight or a 3rd party NMS.

[Steve_Ballantyn]

Hey Ron, sadly "Station event collection on controller is disabled". I just turned it on and set it to "Major" events. Do you think that is good enough for troubleshooting or should I go toward "Informational". I don't want to bog the sucker down.

[Joshua_Puusep]

Can we trade monitors ? 

[Ronald_Dvorak]

LOL - fail, I'm not used to my new 34" widescreen monitor, just had to scroll to the right to see the reason code