Belkin Universal Wireless Extender Set-Up Problems

I'm unable to get my Belkin Wireless Universal Extender to successfully connect, find and boost my wireless connection. Upon set-up I successfully "synched" the unit to my router's IP address using the "Auto" button, but as soon as I move the extender 5 feet away from the router, it's unable to "re-find" the signal, and "boost" it! It worked beautifully when the router was on the other side of my house -- placed the extender mid-way in the house, 3 rooms away from the router! But now, I can't get the extender to re-find the signal after synching it to the router -- in the same room! Help! I've reset and unplugged the extender multiple times, and successfully synched it to the router using the Auto button multiple times. Thank you!