Netflix Streaming Issue

Hello,

I recently disconnected my TV service with U-Verse and downgraded my internet to the 12 Mbps plan. I have signed up for Netflix and have been having constant issues with their instant streaming. Anything I'm attempting to watch loads fine and plays on average for 15 minutes, then gives me a Loading message. The system never recovers and I have to back out of the episode and start it again. After I restart it, it plays for another 15 minutes and gives me the Loading message.

This doesn't appear to be a Silverlight issue, I've tried 2 different computers with 2 different versions of Silverlight and both get the same symptoms.

I have been monitoring the WAN bandwidth inside my router running DD-WRT that is behind the ATT 2Wire. My router is setup in the DMZplus mode in the 2Wire. Before the loading message appears, I notice that the bandwidth monitor in my router drops to nothing.

I was having issues with TV and internet service inturruptions outlined here: http://forums.att.com/t5/Residential-Gateway/Line-Over-Committed/m-p/2979413

My line is still overcommitted in UV Realtime and I was wondering since I'm just using the internet service, would downgrading my profile to the recommended profile shown in UV Realtime remedy this issue?

Thanks!