Att uverse and MacBook Air internet problems?

I Dont know what is going on, we Jutes moved an have att uverse, we had att internet at our old house with the 2wire router it worked great.

now we have the nvg589 motorola router/modem.

we have 2 dell laptops and a hp desktop, a ps4 a few iphones and iPads connected to the router. All the devices are working great and surfing the web.

the problems lies with my personal work/school MacBook Air. I can connect to the router fine with a full signal strength. I can go on yahoo, youtube and facebook no problem and i can even search for any website using yahoo search engine.

WHen i click and load up a web page it loads for ever and eventually says server not found

IVe ve tried changing my dsn, and even hardwiring the Ethernet into my macbook. Still the same problem.

i Called att and they said make sure the ipv6 is enabled and that it isn't enabled by default and that is most likely the problem. they said if that doesn't resolve it to contact apple for help configuring it. Well the ipv6 was indeed enabled already so at this point im clueless on what to do. Changing the ips isn't an option.

please help me im thinking something isn't configured correctly. I've read that the att uver new router nvg589 isn't 100% compatible with iOS . I dont know how true that is but it seems like it at this point.