topic Re: Cisco Webex Service ATMGR.exe Taking 20% CPU in Webex Administration

Cisco Webex Service ATMGR.exe Taking 20% CPU

NismoZ — Thu, 28 Oct 2021 20:33:46 GMT

Anyone having a problem with Cisco WebEx Service taking 20% CPU when just sitting there? More specifically, the ATMGR.exe process in Cisco's software. When this happens, it runs the laptop fan and sucks resources, so it's annoying.

If I end task on Cisco Webex Service, fan and CPU goes down and ATMGR.exe no longer takes resources. Trouble is, I can't really pinpoint when the CPU use starts back. Even when I start WebEx meetings again, ATMGR.exe doesn't use CPU right off the start, so I'm not sure what triggers it. Same after a reboot. This just started with either a recent windows or cisco update.

Company PC:
i7-10610U, 16Gb Ram, SSD
WebEx Meetings: 41.10.7.14
WebEx (teams) 41.10.0.20280
Win10: 21H1 with patches updated

Re: Cisco Webex Service ATMGR.exe Taking 20% CPU

j.kohl@hochwald.de — Tue, 02 Nov 2021 08:51:47 GMT

Hi,

had the same issue with this service "Cisco Webex Service". I solved it by uninstalling all applications with "Webex" in its name, there were two of them on my system, followed by installing the webex client downloaded from webex.com. Now I have one application called "Webex" in the "Apps" list and it seems to work properly.

Regards

Joe

Re: Cisco Webex Service ATMGR.exe Taking 20% CPU

nicolasharding — Thu, 11 Nov 2021 00:27:44 GMT

Exactly my issue as well. i have a brand new dell 5420 with the all driver, window & webex updated to the latest versions. When waking from sleep my CPU runs anywhere from approx 20-50% for no reason. When the ATMGR.exe process is killed CPU load drops immediately. I am running an external Microsoft Lifecam HD 3000. This has something to do with Webex Meetings. I have read in other forums mentioning exactly the same things.

Re: Cisco Webex Service ATMGR.exe Taking 20% CPU

NismoZ — Thu, 11 Nov 2021 13:38:25 GMT

Interesting in the fact that coming out of sleep mode does it for you. That might be along the lines of how I trigger the issue. I've tracked my occurrence down to anytime I RDP into my desktop from another machine, using the same Windows account. Once I am RDPed in, ATMGR.exe goes up to 20% use. Ending task on ATMGR.exe frees the CPU back up until the next time that I change RDP sessions. The only time it goes back up again is if I physically go to the machine that RDPed into and log in there, ATMGR.exe CPU goes to 20% again and stays there until you end task on ATMGR.exe.

Re: Cisco Webex Service ATMGR.exe Taking 20% CPU

jedavis — Mon, 25 Apr 2022 13:23:33 GMT

I just ran into this problem myself. I found 2 atmgr.exe running. I can kill them, but one immediately starts back up. This leads me to believe that it is a service, but I can't find a service named "Cisco Webex*" or "Webex*" or anything else that resembles a Webex service. When I go into the Webex GUI to disable auto-start I find that option is not checked. But autoruns shows me that the CiscoMeetingDaemon is starting via a HKCU\Software\Microsoft\Windows\CurrentVersion\Run registry entry.

The new atmgr.exe that starts after I kill it isn't eating CPU, but it irritates me that I can't make it go away. I could go rename atmgr.exe but I don't want to get into that mess. How can I kill this process without having it restart?

EDIT: It doesn't appear to be a service. Rather, another process, CiscoWebexStart.exe restarts atmgr.exe when it is killed. So if you kill CiscoWebexStart.exe and THEN kill atmgr.exe you are golden.

I hate applications that behave like malware.

EDIT 2: Now it appears that it is spawned by WebExHost.exe, so kill that before atmgr.exe

Re: Cisco Webex Service ATMGR.exe Taking 20% CPU

mr_mac — Thu, 02 Dec 2021 10:56:13 GMT

I had the same issue. I just renamed the offending file to "atmgr.exe.orig" which stops it running and it seems to have no detrimental effect in meetings. Sorted

Re: Cisco Webex Service ATMGR.exe Taking 20% CPU

nicolasharding — Sat, 04 Dec 2021 08:09:32 GMT

After the latest webex update in late Nov this problem disappeared for me.

Re: Cisco Webex Service ATMGR.exe Taking 20% CPU

nicolasharding — Sat, 04 Dec 2021 12:01:41 GMT

I spoke too soon, again after waling from sleep I had 60%+ CPU usage, I killed atmgr.exe, CPU% dropped immediately, atmgr.exe restarted by itself and all was good again. Come on Cisco there's some bug in your software, fix it.