|"My ISP tested my connection and told me my signal is very weak"|
Well did they have any advice on correcting the problem?
You have not provided much information on which to base a response. What type of connection do you have? Cable? ADSL? Dialup? 3G?
Others share the connection but what make/model Modem and Router do you have?
How many others share the connection and what type of activity are they doing?
Gaming? Downloading from filesharing sites? Video streaming?
Have you tried a direct cable connection rather than wireless? There are lots of things that can interfere with wireless signals. Do you have a cordless phone somewhere nearby or solid or metal framed walls?
Goin' Fishin' (Some day)