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haniamoodi's avatar
haniamoodi
Copper Contributor
Apr 23, 2025
Solved

Issue with Queue Viewer after Exchange 2019 CU15 Upgrade (Hybrid Mode Environment)

Hi everyone, I recently upgraded Exchange 2019 from CU12 SU5 to CU15 in a hybrid environment, and I'm now seeing an issue with Queue Viewer on the upgraded server. When I try to open Queue Viewer f...
CU15
Exchange Server
hybrid
  • SEANCHIU's avatar
    SEANCHIU
    Apr 25, 2025

    I got the same error , and after renew Microsoft Exchange Server Auth Certificate in ECP (waiting 8 Hours), Our server can see the Queue Viewer.
    FYI...
    https://learn.microsoft.com/en-us/exchange/plan-and-deploy/integration-with-sharepoint-and-skype/maintain-oauth-certificate?view=exchserver-2019

alexiscampom's avatar
alexiscampom
Copper Contributor
Apr 28, 2025

Good morning.
The incident was resolved with the following procedure described in this link.
https://techcommunity.microsoft.com/discussions/exchange_general/issue-with-queue-viewer-after-exchange-2019-cu15-upgrade-hybrid-mode-environment/4406882

By applying these steps I reopened Exchange Toolbox (Queue Viewer) and the queues were displayed without the error.

Detail of the commands used.
https://microsoft.github.io/CSS-Exchange/Admin/MonitorExchangeAuthCertificate/ 

Thank you very much.

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