To rule out the Router as the source of your problem, power down your Obi ATA, Router and Modem and connect the OBi100/110 directly to your to the Modem. Power up the Modem only until it is "online". Next power up the OBi100/110. Check to see if the GV is Connected. Make such there is no other GV applications registered with the GV Servers using the same gmail/GV email address/password and also double check your password by logging into your Gmail or Google Voice account by actually TYPING in the password.