No EdgeSync credentials were found for Edge Transport

Question

I've checked the bundle of articles, and I've taken the following steps as well.
Delete the subscription from edge and mailbox, and delete the local certificates from all 3 servers
and create the new certificates via "new-exchangecertificate command" and regenerate the EdgeSubscription but still, one mailbox server is giving the below error.
Network connectivity, name resolution, ping everything is fine. Expert opinion is required.
EdgeSync service cannot connect to this subscription because of the error "No EdgeSync
credentials were found for Edge Transport server EXC02 on the local
Mailbox server. Remove the Edge subscription and re-subscribe the Edge Transport
server.".

Answer 1

Hi @Muhammad Hussain

What's your Exchange server and CU version?

Have you checked if any error recorded in Event Viewer Application Log? I see a similar issue discussed here: Exchange Hub cannot communicate to Edge "no edgesync credentials were found"
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somehow exchange server was not using the newly created certificate, i found this in the event viewer after services restart. not sure about the event viewer ID but the event was similar to the below
"The certificate with thumbprint XXXXXXXXX was not found either restore the certificate or create new. use this command to enable the certificate Enble-Exchangecertificate <thumbprint> -smtp "
after that, i compare the thumbprint from the log and certificate store. then i enable the certificate with the below command.

Enable-ExchangeCertificate -Thumbprint <thumbprint> -Services SMTP  

Or you could share the result running the command:

Get-ExchangeCertificate | fl  

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