i am having issues with a wireless-n wifi repeater. i saw a post on this site that said to make sure that the wired connection was the only connection to the computer when the repeater was configured. once i did that, everything went per the instructions, so i thought it was fine. however, when i take it downstairs and plug it in, it says that it is repeater is unsecured even though i linked it to my main router, using encyrption. what am i doing wrong?