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?

[JP4]

Unless its different in v10, you can make the changes on multiple AP's through:
AP-Bulk Config- AP multi-edit. Select multiple AP's and then change the settings on the right. If they are greyed out, you have to start at the top and work your way down until they become active.

***Edit*** - It looks like Ron posted the same thing about making changes to multiple AP's and it does looks like its different in v10.

[Steve_Ballantyn]

From what I am hearing - the laptops are only about a year old (so they did get replaced at some point). They should at least be on the 'n' band. I have applied all of Ron's suggested settings to the AP's in this building and I am soliciting feedback from the users.

It sucks that all of these Advanced settings cannot be made upon multiple AP's at once using the admin pages. That took me a while!

*EDIT* Ron - do you think any of these settings were changed as a result of the upgrade?

[Steve_Ballantyn]

Hey Ron, I can try these settings in an secluded area. We have a building that is off on it's own and is having a lot of these problems. I'm sure they won't mind if I tell them I am trying some different settings with them. I do have a very dense deployment of AP's, so I should be able to use these same settings as you.

I am not sure if the clients are 2.4Ghz or 5Ghz. They have all long gone home now and I am not sure how to view the history. I am betting that they are using these Fujitsu Lifebook tablets which are VERY old and would not support 5Ghz.

[JP4]

Just curious, what firmware were you on before 10.21.01.0065 ?

[Steve_Ballantyn]

Hello JP, I was on 10.11.02.0032.