Exchange 2016 Certificate Problem

Khi gặp lỗi như bên dưới, tiến hành kiểm tra Evenlog sẽ thấy lỗi mô tả như bên dưới.

A special Rpc error occurs on server S-XXXXXX: Could not grant Network Service access to the certificate with
thumbprint xxxxxxxxxxxxxxxxxxxxxxxxxxxxx because a cryptographic exception was thrown.
    + CategoryInfo          : NotSpecified: (:) [Enable-ExchangeCertificate], InvalidOperationException
    + FullyQualifiedErrorId : [Server=S-XXXXXX,RequestId=0ce68699-de3e-4ac4-9c7a-094b538d302d,TimeStamp=01/06/2020 13:
   59:03] [FailureCategory=Cmdlet-InvalidOperationException] D9EA479C,Microsoft.Exchange.Management.SystemConfigurati
  onTasks.EnableExchangeCertificate
    + PSComputerName        : s-XXXXXX.xxxxxxxx.co.uk

1. Gỡ bỏ hoặc Disable Antivirus

2. Tiến hành import ssl lại, tham khảo như link bên dưới.

https://www.tbs-certificates.co.uk/FAQ/en/529.html

https://knowledge.digicert.com/solution/SO21653

3. Trường hợp khi import ssl mới, vào Ecp, Exchange Console bị lỗi, tham khảo link bên dưới để fix

http://vnnetwork.blogspot.com/2020/07/an-error-occurred-while-using-ssl.html