I hooked my vip 722 up via ethernet cable through verizon dsl combo modem and router. Two days later the DSL was inoperable. Verizon said the router modem was bad. Never got the new router to function. Was finally able to make the old router function by restoring the saved modem router configuration file. Is this just a coincidence since modem router is 2 years old or has someone else seen this happen ?