I have a couple of computers that after about 3 weeks went to a status of “Agent Down”.
- Checked the services to make sure they are running (C1Maintenance & C1Patching) and they are
- Checked to make sure that Windows Firewall wasn't blocking. I didn't notice anything out of the ordinary and even turned the Windows Firewall off to test.
- Doesn't appear to be a hardware firewall as other computers in that environment/LAN are reporting.