Have you actually tested your download speed since you've been having the problem? Maybe your network from your provider has degraded. I'm just curious, but do you get your internet via cable or fiber optic. 50mb is smoking fast- I'm jealous! That's the equivalent of a T3. I'm on Time Warner (roadrunner), and occasionally I have to call them to come fix the cable into the house because connectors and/or the cable itself has degraded.