I reset my laptop to factory setting, and now I am only getting 1-bar connection. It flickers to 1 and 5 bars every minute or so. It disconnects completely most of the time. Nothing is wrong with my router I've reset it many times and my other wireless devices work fine. This is the first time I have to sit really close to the router to sustain a 5-4 bar connection but I have never had to do this before and I plan not to. is there anything I can change in the settings to fix this?