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So, if i am understanding correctly, your INTERNET from ATT U-verse is saying NO ACCESS POINT FOUND, and you are UNABLE to get online to use the internet. So you called ATT and they said you need a new RECEIVER???? DOnt they mean a new MODEM/ROUTER/WIFI device. Or are YOU just calling it a receiver?
Either way.....did you take ATT's advice and GET A NEW RECEIVER?
Contrary to popular belief you DO NOT have to USE ATT's equipment, you CAN go out and get YOUR OWN, from BestBuy, or Walmart....just so long as it COMPLIES with ATT's requirements....you should be good to go....and saver some money in the process.