Agent Upgrade Failure

[Shahwaz_Md]

Hi,

These are agent upgrade failure reasons, please suggest the method to resolve these issues-

1- Installer has timed out

2- Cortex Agent upgrade failed

3-The content package was faulty or could not be downloaded.

Thanks

Shahwaz

[PiyushKohli · Accepted solution]

Hi @Shahwaz_Md 

Thank you for writing to live community!

For agent upgrade in case you are upgrading Windows endpoints to Latest agent release and encountering following error "Cortex Agent upgrade failed", I believe you might have check new agent requirements of Windows Azure Code Signing KB5022661 requirement for >= 8.0 documented here and endpoints without this patch will not be able to install or upgrade to newer versions of Cortex XDR agent.
Additionally, there is a "test_acs" script available in the tenant Scripts Library which you may locate at (Incident Response -> Response -> Action Center -> Agent Script Library) using which you can check if endpoints have that patch as shared in below screenshot.

If above requirements is covered and issue still persists, please open a ticket with TAC so they can investigate further

Hope this helps!

Please mark the response as "Accept as Solution" if it answers your query.

Regards.

[Shahwaz_Md]

Hi Piyush,

Thanks for the response.

We are trying to upgrade to the n-1 version ie 7.9.1 currently and facing issues.

Thanks

[MikeJohnston]

Regarding this test_acs script, is there information about potential bandwidth impacts due to it running against the entire endpoint base within Cortex XDR? We already experience bandwidth issues at some of our locations that do not have adequate bandwidth each time new agents are released. I've searched quite a bit and am not finding any info.

Has anyone run this test_acs and can provide input?