Family went away for the weekend, and took two laptops with us which we used to connect to the internet via a couple secure networks - no problems.
When we returned home neither laptop can connect via wireless to the internet.
The laptops see our home network, but when selected, and the connect button clicked the message comes up with "windows is unable to connect to <network name>.
Both use windows 7.
How do I reset the connection on the laptops.
Thanks,
rannoch

The easiest way to fix this (probably) is to uninstall the Wireless network device from Device manager then reboot. Win 7 will rediscover the device and reload the drivers. That should fix it.

Thanks that did the trick.