I appreciate this response, but I am not experiencing PPP connection loss. I am trying to set this up to use as a mobile router in a remote location. I am using all default settings including QMI rather than PPP. when I power up mobile connects and I am able to access the router wired or wireless, but there is no internet connection. Using advice given earlier in this thread, I unchecked Auto APN and selected APN "internet(VZWINTERNET}." When I click save, the unit does some internal processes and then I have an internet connection. The connection is stable, has great performance considering I'm in a marginal mobile reception area. As long as the router has power it will continue working that way and would be more than suitable for my needs. BUT... if the unit powers down for whatever reason, when it is powered up again it has no internet. If I select another APN, save, re-select VZWINTERNET, the internet connection is re-established. This is unsatisfactory since I will not be nearby to make configuration changes when the unit is put in service. I am nearing the end of my window for returning the device to Amazon, so I am desperate to solve his issue.