I want to do some testing of Ubuntu Server 14.04.3, so I tried to install it on my HP G62 laptop. However, it refuses to proceed past network setup, and claims it can not connect to my router.

I have a dozen devices in my home connected to my router, so I'm pretty sure I know what the SSID and WPA key are.

Xubuntu 14.04 installed on the same configuration with no problems.

Any suggestions are welcome.