will not accept my wireless key

Need a lot more info.

you posted in the range extenders section and put in your signature the A6150, a wireless adapter.

What are you attempting to do? 

What are you actually using?

Where in the process is it failing? expand on this. 

The more details you get us, the more you can help. When its short and vague without even the bare minimum, its tough to help.

so, help us to help you

Or go to netgear.com/support/  type in your model number. It'll have install guides (some install video's too), manuals, drivers, etc.

Or if you're within your 90 days of free support, you can click on "mynetgear" at the top, register an account and then your device. From there you can contact netgear and use your free 90 days of support.