I have a home server that's been working fine for the past few months. For the network configuration, I've assigned it a static IP, and various ports have been forwarded, e.g. 22, 80, 8080, 443, 5904, and a few others. Up until now, I've been able to connect via ssh no problem, but just recently, I have begun to get the "no route to host" error. Also, the web server that runs on it seems to be inaccessible.
The server is running in a remote location so it's difficult to diagnose. I've tried restarting it and the router, but the problem persists.
Any ideas as to what could have caused this error to start appearing?