The Problem: In your living room, your wireless connection is fine. Move into another room and the signal becomes weak or nonexistent.
Quick Fix: There are several things that could cause a wireless
signal to drop. The big culprit is interference. Cordless phones and any
device using the 2.4GHz band could be the cause. Even things you
couldn't imagine could cause interference, including mirrors and glass.
Once you've checked for physical interference, test something: Do all
your devices and computers lose signal at the same location, or just one
in particular? If all, chances are the problem lies with the router.
Consider external antenna for the router and also check for router
firmware updates. If one specific machine is dropping the signal, update
that machine's wireless client adapter or upgrade the adapter
altogether.
Internet Connection Tips; When I Move to Another Room in the House, the WiFi Signal Drops