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All of a sudden, there are several sites I can no longer connect to if on Wi-Fi. One is EBay. I get an access denied message. The same goes for Costco.com. If on wired, on the same router, no problems connecting. Now I've only had this device a couple months and these issues are happening. I've updated the firmware and that didn't change anything. I've reset the router and no change. Am I looking at a new router or can this one be fixed.