|Yes you should provide more details, like where you wireless router is placed. I am guessing its not placed in vicinity of your laptop.|
Just a note, if you are getting weak signals then it means that singals can not reach to your laptop, either because the output power of the router is low (which usually isnt the case, as the installer first analyzes it - but still its a possibility). The other reason can be its placement. Dont place wireless router beside a TV or microwave oven or any other electrical instrument, as they can mess with its signals. Dont put it under stairs either. Wireless waves actually bounce back off the walls and the things inside your home to finally reach your laptop, so the less hurdles you place in their way the more signal strength you ll get. Try to place the router in some open space (may be on the floor in open tv lounge), and as near your laptop if possible.
Hope it helps
Muzammil / Pakistan