Forum Discussion
Nikolas_Athanasakis
Jul 14, 2021Copper Contributor
Exchange Server error in '/owa' application
ASSERT: HMACProvider.GetCertificates:protectionCertificates.Length<1 Description: An unhandled exception occurred during the execution of the current web request. Please review the stack tr...
- Jul 14, 2021Ok i found solution. Use this to create new certificate https://docs.microsoft.com/en-us/exchange/troubleshoot/administration/cannot-access-owa-or-ecp-if-oauth-expired
And after creating the certificate you must wait like a hour or more for changes work. Restart dont change the wait time 🙂
Kreera_House
Oct 22, 2021Steel Contributor
Ran into the same issue with the October update. In our case, the Exchange Server Auth Cert was not expired, but it was never properly activated and published. The posted solution worked like a charm without any delays.
vigna840
Nov 11, 2021Copper Contributor
OAuth certificate has been expired and I am trying renew from exchange management shell and I am getting error like network services did not have permission like that. However I can see the certificate in personal folder.
I am not able to assign this certificate. please advice how do I fix this issue
I am not able to assign this certificate. please advice how do I fix this issue
- waaalexNov 11, 2021Copper ContributorPicture with error message ?
Something in évent viewer?
Can tout try as domain admin?
Is your user member of exchange admins ?- vigna840Nov 12, 2021Copper ContributorHi,
The issue has been sort it after we disable to McAfee and run the PowerShell command works as expected.
However one of the Exchange server failed to run the management shell.
Any idea? Please- waaalexNov 12, 2021Copper ContributorYou should have red error message when launching exchange powershell.
You Can copy paste this error on Google.
Aldo, what is error message ?