FYI - I always use the Centurylink router when setting up their dsl. Always works and they support it if it's not working. Pay the $8 month for leasing the router too, it's their insurance policy - if it's zapped by lightning, they will replace it.

I've never had the store bought router work on DSL, they design it that way and don't want to support other peoples crap. No different than a car dealership not supporting your upgrades to a diesel engine etc.