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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 🙂
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 🙂
And after creating the certificate you must wait like a hour or more for changes work. Restart dont change the wait time 🙂
Thank you very much for the link! This fixed my issue as well. We were running Exchange 2013 CU23 (no SU installed) and I installed Jul21SU. I received no errors during the install and our Outlook clients could still connect after the upgrade, but I could no longer access OWA or EAC. Our cert was not expired either. I followed the commands in the article and then ran IISRESET and both worked again! Thank you again!!
