Re: New 2wire 3801hgv not working, but it is replacing a 3800hgv
Your uverse internet connection requires the use of 802.11x authentication, which means the 3801 will not authenticate until after at&t enters the 3801's certification
reply to jonatay You need a group called "Tier 2 ICU" to remove the old modem's MAC address/info from the ONT, and then your new modem can connect to the ONT and authenticate
Modem swaps on FTTPs is always a bit of an adventure
Either a post in the AT&T direct forum or shoot off an email to uversecare@att.com with your account and contact info, and a link to this thread