topic Re: Wireless Access point 9120 AXI Coverage issue in Wireless

Wireless Access point 9120 AXI Coverage issue

ranjiccie — Mon, 18 Apr 2022 19:01:05 GMT

Hi,

I have deployed 9800 WL controller and connected the access point is 9120 AXI, the access points are installed top of the ceiling, and All users are sitting nearby access point,

The problem is users are facing disconnection issues and Microsoft teams video call issue, I have gone through that connected clients in controller , some of the clients signal strength dbi is more than 75 dbi.our customer have old access point have good coverage. users have no issues with. but the new access point 9120 AXI most of the users having the signal coverage issues.

Re: Wireless Access point 9120 AXI Coverage issue

balaji.bandi — Mon, 18 Apr 2022 19:03:37 GMT

is this only issue with teams ? how about wired network same time ? is this for all users ?

issuesin mictosoft teams call in wlc 9800

ranjiccie — Mon, 18 Apr 2022 19:07:16 GMT

Hi, I have deployed 9800 AXI wireless controller, which is configured as a local switching with flex connect.

now custromer is reporting the issue is microsoft teams call.

while they are using microsoft teams call with video/screenshare they is some delay.

while using mictrosoft teams and tested the ping to microsoft teams public ip there is round trip delay in more than 130 ms.

as per the microsoft documentation the max round trip delay is 100ms.

how we can solve this issue.

Re: Wireless Access point 9120 AXI Coverage issue

ranjiccie — Mon, 18 Apr 2022 19:09:46 GMT

over wired have no issues. in wired round trip delay is max 50ms but wireless some times coming more than 130ms. that time users are facing issues in teams.

Re: issuesin mictosoft teams call in wlc 9800

balaji.bandi — Mon, 18 Apr 2022 19:37:33 GMT

130ms to teams on wireless and wire you mention 50MS, where the latency adding, what point ?

how about latency to gateway ?

check in the path where this causing issue ? switch ports,

Re: issuesin mictosoft teams call in wlc 9800

ranjiccie — Mon, 18 Apr 2022 19:40:11 GMT

latency to gateway is less than 15 ms

Re: issuesin mictosoft teams call in wlc 9800

balaji.bandi — Mon, 18 Apr 2022 19:45:14 GMT

wherein the path its adding latency ? how about the switch port where WLC connected or AP is connected? what is port-utilisation, port errors ?

Re: Wireless Access point 9120 AXI Coverage issue

Leo Laohoo — Mon, 18 Apr 2022 22:47:23 GMT

Raise a TAC Case.

This is a known issue with COS and MS Teams.

Re: Wireless Access point 9120 AXI Coverage issue

ranjiccie — Tue, 19 Apr 2022 20:14:36 GMT

Hello Leo. i ahve opend the tac case, so far no solutions from TAC.i ahve deep ananlysed the issue even internet also gaving delay some times 3000 ms delay.

Re: Wireless Access point 9120 AXI Coverage issue

rmfalconer — Wed, 20 Apr 2022 15:28:53 GMT

Is there a bug associated with this? Is it only with the 9120 or with any 9K? Certain software versions?

New APs not working with Teams is a massive issue.

Re: Wireless Access point 9120 AXI Coverage issue

Leo Laohoo — Wed, 20 Apr 2022 16:52:50 GMT

I am trying to find the Bug ID regarding this.

Re: Wireless Access point 9120 AXI Coverage issue

balaji.bandi — Wed, 20 Apr 2022 17:10:32 GMT

not sure check this bug :

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwa31596

Re: Wireless Access point 9120 AXI Coverage issue

Leo Laohoo — Wed, 20 Apr 2022 17:49:58 GMT

@balaji.bandi wrote:

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwa31596

Yeah, this is the one. I tried searching for "MS Teams" in my emails and never came up but this is the one.

Re: Wireless Access point 9120 AXI Coverage issue

ranjiccie — Thu, 21 Apr 2022 04:46:33 GMT

Hello, am using WLC 9800 version is 17.3.4C and AP 9120 AXI version is 17.3.4.40. can you please check is there any bug in this version.

Re: Wireless Access point 9120 AXI Coverage issue

Leo Laohoo — Thu, 21 Apr 2022 05:25:57 GMT

The only way is to raise a TAC Case and get them to verify.

Information in Bug IDs are usually inaccurate and vague.

Re: Wireless Access point 9120 AXI Coverage issue

ksoltani — Thu, 21 Apr 2022 15:30:36 GMT

I have Wlc Cisco C9800-L Software version 17.3.1 and Cisco AP Software version 17.3.1.9
I have the same issue on our site, users claim that there are cuts with Microsoft Teams and I do a ping test the response time exceeds 100 ms
I asked the same question today in cisco forum for cuts with microsoft teams apparently is a release bug

Is it possible a cisco support employee that we confirmed is a release bug or is there another way to resolve this issue

Re: Wireless Access point 9120 AXI Coverage issue

ranjiccie — Thu, 21 Apr 2022 17:38:20 GMT

did u got any solutions.

Re: Wireless Access point 9120 AXI Coverage issue

ksoltani — Fri, 22 Apr 2022 07:46:14 GMT

@ranjiccie no not yet, I discovered the issue yesterday and I asked my manager to open a cause with cisco support
ona other site uses old range of AP is no problem with Ms Teams
Apparently the issue related to the 9K series wifi AP level

cisco support what did it say about it is a problem ??

In the next few days, if I found a solution I will share it with you

Re: Wireless Access point 9120 AXI Coverage issue

Rich R — Fri, 22 Apr 2022 12:21:19 GMT

@ksoltani and @ranjiccie did you read the bug notes and try the suggested workaround?

Re: Wireless Access point 9120 AXI Coverage issue

Rich R — Sat, 23 Apr 2022 13:33:40 GMT

You really should not be using 17.3.1 - so many bug fixes since that was released. Suggest you upgrade to 17.3.5a with CSCwb13784 SMU for a start:

https://software.cisco.com/download/home/286323158/type/282046477/release/Amsterdam-17.3.5a

Then read the workaround details in https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwa31596 because that has not been fixed yet in a released version.