FJL has lost Internet connectivity.
Does that mean I have to come over now?

Otherwise, just tell him if you happen to connect with him otherwise to:
1) Unplug the modem. *Just pull the A/C adapter out from the back of the unit.
2) Unplug the router. *Just pull the A/C adapter..
3) Unplug the phone/cable from the modem.
4) Wait ten seconds.
5) Plug the phone/cable back in.
6) Plug the modem back in.
7) Plug the router back in.

Wait a few seconds for it to reboot.