ATT DSL Issues

In the past few days the dsl starting acting up. Originally thought it was the router because its old. Replaced it, but still get the same crap.

Im getting DNS issues, usually everything will work fine for like 30-40 minutes and then it craps out with a DNS issue. The only way Ive found to fix it, is to power cycle both the modem and the router.

I tried setting it up to use static DNS from google, but my networking skills have pretty much been forgotten.

Any ideas? Especially before I sit on the phone with att for 3 hours power cycling everything again.