I have Uverse 12Mgb internet only.
I was originally shipped (Oct 2013) a 3600..didn't work and a tech brought me a 3801..asking where and why I had the 3600.since it was obsolete and discontinued.
Now, after about 6 months, I have some intermittent problems that I think are caused by the modem. I am using the bundled modem/router.
I called a few days ago and was told they were shipping me a 5031 as the ones I had are actually discontinued. Today I received another 3600. I called and they apologized and said they will ship me the correct one. I just got a shipping notice and yep, another 3600 on the way.
It almost sounds like ATT wants to subsidize USPS and UPS.
Comcast tells me they will give me a DOCSIS 3 and better speed at the same price I am paying now.