Tag: ms-Exch-EPI-Token-Serialization

We are here! For me, this error occurred after update to CU11. I can not open OWA after update, but ECP was works good. This was occurring because the computer object was added to a group that is denying this key/token ms-Exch-EPI-Token-Serialization As Microsoft said, the following group have the token denied by default. Domain … Continue reading Event id 5 MSExchange Control Panel