D-Link Woes

I don't usually use this forum to complain about technology but I have little choice after two weeks of frustration trying to get a D-Link range expander to work with my wireless network. They sell the product as essentially plug n' play. You take it out of the box, go to a Web site to configure it, and it is supposed to work. Well, it didn't work despite many calls to customer service. I even purchased a new wireless router after a second D-Link customer rep happened to mention my existing D-Link router was not compatible. (Strange, it didn't say anything about that on the range expander box). Finally, another customer rep suggested the expander was defective, and I should return it, which will likely take several weeks. Arghhh! There, that feels much better.