This problem normally happen when we have a certificate mismatch or certificate is expired.
I am certified in MCSE 2012, Have more than 12 years of System Administration. I can help you.
Relevant Skills and Experience
MCSE 2012, with over12 years of experience.
Proposed Milestones
$133 AUD - MCSE 2012, with over12 years of experience.
Do you have the server access, as I need to look into the server for more troubleshooting?