i am a new user with a SIP setup on a Linksys PAP2T-NA box.
I configured everything on Saturday and although it works, about twice a day the line 1 light goes off and in the settings I get the error:
After a reboot, or wait for the countdown to retry it reconnects.Registration State: Can't connect to login server
I had the register expires set to 180 seconds, I changed it to 181 just in case.