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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 🙂
We are having the same issue. However my current OAuth cert doesn't expire until 4/22. Any reason to replace it anyway? Also, I applied KB5004779 yesterday.
- See my reply below
- I did all above with out any luck.
then running the kb5004780 (Exchange 2019) i an elevated cmd, then OWA and ECP worked again.
(ran kb5004780 first as a normal user, not elevated cmd)- I believe this issue about evelated rights is documented in the link below. Unfortunately, this was not our issue. We were experiencing the issue Asterofus provided the solution for.
https://docs.microsoft.com/en-us/exchange/troubleshoot/client-connectivity/owa-stops-working-after-update.
- I encountered the same issue, uninstalled the update and it worked. I'm going to wait to see is there is a new update that doesn't break anything.
- Same issue here, not sure if I should replace a valid cert or just wait for a different fix.
