new computer won't connect to wireless router

firbyfred

We took delivery of my son’s new gaming desktop computer, but we cannot wirelessly connect it to the router although it has full strength and the correct password.
I contacted the company who assured us that it was not a hardware problem as it was reading the router, I went on to explain that 2 laptops and 2 Xboxes were connected wirelessly to the router with no problem.
He suggested a few things it may be but he lost me technically i.e. router settings, ISP address, checking the home network etc.

Can anyone help please?

The router is a Netgear DGN 2000

Thanks

penrhyn

Remember passwords are case sensitive.

firbyfred

I wish it was that simple

dogmaryxx

Control Panel

Network + Internet Connection

Network Connections

Right click your Connection

Properties

Wireless Networks tab

Tick Use Windows to configure my network click ok

Back to Network connections and create new connection