PC disconnects other PCs from Router ???

[Katmandu]

I have (3) computers running of a Linksys WRT54G router. (2) are hardwired and the other is Wireless.

All run and connect to the net just great when they are all ON. However, whenever I turn this particular PC off for the night, it "somehow" disconnects the others from the Internet!!

None of these computers are Networked together either! All are running XP Pro.

What the heck is going on here ?

 

[Ethereal_Dragon]

When that PC is off, can you still access the router? Try to login to the router's config page with your internet browser, or pinging it from the command prompt.

 

[CntdwnToExtn]

have you changed any "gateway" settings that you can recall?
or manually set IP addresses for the computers?