I have a CenturyLink DDR2200, working with my PrismTV (Same a U-Verse, but its IPTV)
For some reason, to use Apple's iMessage, or FaceTime, I have to go into the device settings and change the DNS from 192.168.1.254, to 220.127.116.11.
I know this isn't going to hurt anything, but why do I need to do it? It doesn't make since on why this should need to be done, because with my old Embarq stuff, it worked perfectly fine.
It's not only Apple's iMessage, its there Push Notification servers, and its my HP Printer Apps. I can't connect to the HP Printer App store and it doesn't work, but as soon as I go into Internet settings, and change it to 18.104.22.168, it works!