Tiscali Broadband - Wireless?

Question

The internet wont work on my PC or laptop, but works on my PS3.

All the lights on my wireless router are green as normal.

On my PC it says "Cannot acquire a network address".

Can I do anything to fix it?

Answer 1

"Cannot acquire a network address" means DHCP is failing on that client (PC).  Is the laptop getting the same error?