Forum Discussion
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...
- Ok 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 🙂
FYI, Update:
Since our cert wasn't expired I tried and installed CU10 and that solved it for me.
Since our cert wasn't expired I tried and installed CU10 and that solved it for me.
installed exchange 2019 c11 error re certificate error.
