I have a Synology NAS that is secured using a Go Daddy SSL. It has been working fine for months and the certificate doesn't expire until 2019.
I have one user who receives the NET::ERR_CERT_REVOKE Revoked Certificate response trying to access the site from either Chrome or Edge browsers. He can access the site only from IE if I disable the 'Server Revocation Check'. He has two laptops and it is happening on both.
Here's the kicker:
All other users can access the site without error from any computers and mobile devices. I have tested this from multiple computers located all over the world and it always works as it should.
What I've done so far:
I verified the validity of the cert on both GoDaddy's site and the NAS.
I ran Full Scans of his computer using both AVG and Malwarebyes and they came back clean.
I tried uninstalling Chrome and re-installing.
I tried updating the CRLSet Component of Chrome.
I tried manually importing the certificate and private key to his Private Store on the computer.
I tried looking at blogs on this topic, but most don't really apply to this specific scenario.
Two Possibly Unrelated Observations
This first happened after both computers were at his home and I wonder if his home network might be involved, though I don't see how exactly.
He is the only domain users who claims that Outlook periodically prompts him for a password for his Exchange account. This also seems to be happening while at home. I have never been able to reproduce this issue. Whenever I remote-in to his computer and bounce Outlook it connects without issue.
Any suggestions would be appreciated?
Thanks in advance,