special Rpc error occurs on server

Hi @Glenn Maxwell ,

So, the exchange wildcard certificate was exported from exch01 and you are now trying to import it into exch02, right?
Have you checked if the certificate is valid by running Get-ExchangeCertificate on exch01?

Based on my research, the error you met might be related to the private key of the certificate. To correct this, please try following the steps below and then try it again by exporting the certificate with private key on exch01 and then importing it on exch02 to check the result:

1. Open Microsoft Management Console (mmc.exe) on exch01 and add the Certificates snap-in.
2. Locate the certificate, click the Details tab, click Serial Number in the Field column, select and copy it.
3. Open a command prompt as an administrator, type: certutil -repairstore my "SerialNumber" (SerialNumber is the serial number that you wrote down in step 2.)
4. In the Certificates snap-in, right-click Certificates, and then click Refresh.

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