linksys wireless router

[vietkangta]

ohk i have a friend that has a linksys wireless router being used by two computers. Recently one of the computer is acting up and hasn't been able to connect to the internet. I tried to fix it by repairing the connection through the connection thing but it sitll wont work. Both computer's wireless connection was workign well before but now one of them doesnt seem to be working. What cna be the problem?