Instruct: Classify Amazon reviews into positive or negative sentiment
Query: function broken, and tech support doesn't know what I am talking about

doesn't work with my wireless TV receiving box, though a DI-524 works fine. Looks like a known problem when googled the problem, but the tech support from D-Link doesn't know what s/he is talking about by just sending totally unrelated diag/fix info. Wanted to return the product but was too busy in the holiday season to do that.