I am trying to create a homemade server. I'm running Ubuntu 18.04 and have an Xfinity router. I've forwarded port 22 to a reserved local IP for my server.
The problem is that I can connect via a different network (using my iPhone hotstop), but only for about 3 minutes after my router starts up. At this time the xfinity gateway (https://internet.xfinity.com/network/advanced-settings) is unresponsive which I guess means it's still starting up. After about three minutes the page loads, and I'm no longer able to connect via ssh. Any help would be super appreciated - thanks all!