We have this happen every long trip we go on. seems to be a router issue as the wifi actually stays connected to the truck but the phones, ipads loose connection.. If I was to just guess the hardware probably overheats or has a bug and shuts down.. pulling the battery connection was a bad choice as we lost heater controls for a extended period of time while traveling and waiting for the system to recover.. Soft reset did not reset the router so that option did not work, Under dash fuse may have worked diferently but we did not have tools to access the location. Uconnect blames Ram, Ram blames uconnect, personally IDC whos fault it is I purchased the 70k+ vehicle from RAM and its advertised functions should easily work for 10-12 hrs of use. They have had the equipment on the road for a couple of years and should fix whichever part is bad, hardware or software and quit telling us to pull a fuse during our trips to fix the problem.