03-23-2011 04:42 PM
PPP issues are generally never problems with the modems unless the modem has really, really buggy firmware or is struggling to maintain sync. To know what the problem is for sure requires reading the modem log and understanding what it is saying. If you can post it up for us to see, we can see what's going on. Considering it's worked in the past, suggests there is a problem on Verizon's ends of things, not your end of things.