Event ID 15021, HTTPEvent Error An error occurred while using SSL configuration for endpoint 0.0.0.0:444 – Exchange Server 2013
Error Decription:
An error occurred while using SSL configuration for endpoint 0.0.0.0:444. The error status code is contained within the returned data.
You will find the multiple events are thrown every minute with similar description.
This is a common error I observed in Exchange Server 2013. You will observe the all or few of the following,
This happens, I suppose, due to the usage of non-existed certificate. I have verified the ID of the certificate in question with the available certificate in my SSL store, however I did not find the one which was assigned to 0.0.0.0:444.
How to Fix:
Procedure:
Open Command Prompt (because EMS is broken)
1. Run “netsh http show sslcert”
Note down the Certificate Hash and Application ID of the certificate assigned to IP:Port 127.0.0.1:443.
2. Run the below command to delete certificate assigned for IP:Port 0.0.0.0:444
netsh http delete sslcert ipport=0.0.0.0:444
3. Run the below command to add the noted certificate to ipport=0.0.0.0:444
netsh http add sslcert ipport=0.0.0.0:444 certhash=1234ed434 appid="{1010101010}"
Note – replace the certhash and appid with the value noted earlier.
Wait for a while, and you will no longer observe the error events in the Event log and the Exchange will start functioning as normal. It is recommended to take a restart of the server post these changes.
