I have a user at my firm who recently had their Macbook set up to access the VPN (which uses Cisco IPSec) and RDP to their work machine. The setup works just fine over a wireless hotspot, but at home, they are unable to get the RDP session going or even ping their computer or our DC. Ping error messages are “Host is down” and the error message she gets on RDP is:
“The Mac cannot connect to the Windows-based computer.
This problem can occur if:
-the Windows-based computer is not set up to accept remote connections.
-The Windows-based computer is not turned on.
-The Mac, or the Windows-based computer is experiencing network problems.”
Their home router is a TP-Link Archer C5400. I have already verified that IPSec passthrough is enabled and that the user is connected to the main network and not one of the guest networks, and I am unsure what else to look for. I tried enabling port forwarding for port 3389, but this made no difference.