Can I use my wireless router on a friend's internet connection?

[Computer Doc]

Make sure that you are connecting his internet connection directly from the broadband modem into the right port of your wireless router.

You can't connect from a wired router to your wireless router.

If your wireless router has a port for a wired connection, connect it to your laptop using a wired connection to see if the thing is basically working.

If it is, try the wireless connection with your laptop right next to the router.

You can use windows help troubleshooting to narrow down any further problems.