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 🙂
SteveJD
Mar 24, 2022Copper Contributor
I'm attempting to follow the OAuth renewal instructions so I can regain access to the management console.
When I execute the initial command to obtain the thumbprint I get an error.
(Get-AuthConfig).CurrentCertificateThumbprint | Get-ExchangeCertificate | Format-List
The error told me the certificate with thumbprint xxxxxxxxxxxxx was not found.
Should I run the renewal command to create a new OAuth cert using the thumbprint displayed in the error message, or should I run it using the thumbprint viewable in the current certificate properties?
When I execute the initial command to obtain the thumbprint I get an error.
(Get-AuthConfig).CurrentCertificateThumbprint | Get-ExchangeCertificate | Format-List
The error told me the certificate with thumbprint xxxxxxxxxxxxx was not found.
Should I run the renewal command to create a new OAuth cert using the thumbprint displayed in the error message, or should I run it using the thumbprint viewable in the current certificate properties?