Please, to the best of your ability, fill out your system specs, use the "User CP" link at the top of this forum or thread. Without a model number for your machine, which version of Win 7, and whether it's 32bit or 64bit and some information about your network adapter, I can only suggest that you check and confirm you have the latest drivers (preferably from the adapter manufacturer's website) for your network adapter, the latest firmware for your router and perhaps attempting to connect your laptop directly to your router with a Cat5 ethernet cable, to temporarily take the wireless device out of the equation. I'm sure we can possibly help you with this issue but we're going to need some more info.