I have provisioned around 30+ J169 SIP phones and tested every single one of them off a dirty Internet connection and ensured each extension logged in successfully. I have a user who received the phone and it sits at acquiring service and it doesn't go away. I log this user into my remote SIP phone and it works instantly. As stated, I definitely tested every one of these phones before shipping out. What can be the issue here? Is it the user's home Internet? Seems to pass the login portion and sits at acquiring service.