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I connected the TV to my AT&T DSL network (using a Westell modem & Linksys E3000 router) with no problem. The network is fine--PCs are downloading at 5mbs. The TV also passes its network test and the widgets (eg Yahoo finance) get network access. But the TV cannot access Samsung's servers (eg download update, search for new apps)... it keeps reporting 'network interference' or 801-time out. I even tried connecting the TV directly to the modem thinking the router might be an issue -- but still the same problem. Anyone have a solution?