Is there a GPO policy or someting easily deployable that would diable the wireless adapter when a user connects to a physical LAN?

You can run a script that will assign a Metric value to the IP address of the Network adaptor.

If it's Wireless give it a high cost

If Ethernet, a low cost...

I'll find the link for you...

Try this one

https://www.experts-exchange.com/questions/26875220/DHCP-assigned-metrics-with-Windows-7-clients.html?sfQueryTermInfo=1+10+30+metric+wireless

Kindly find the link below which would help you to fix your issue

http://www.grouppolicy.biz/2010/03/how-to-use-group-policy-to-blackwhite-list-wireless-networks-in-vista-windows-7/

The basic idea goes like this...

Create a GPO that runs this VB script at startup.

The script assigns a metric cost to each network adapter (Wireless = 35, Ethernet=10)

Then any IP traffic is routed along the least cost.

If Ethernet is plugged in it is the lower cost so wireless is ignored.
If no Ethernet is present then Wireless is taken as the only other option.

Thank you everyone, I get the feeling there is not GPO that handles this.  

A couple comments:  Traffic is flowing correctly, so i have no need to change the metrics- our wifi is a public wifi and issues DHCP seperately from our internal domain.  Id actually like to physically disable the WIFI when a user is connected via a physical LAN connection.  We use Dell, and dell makes a WIFI appliaction that could allow for this, but we dont install it becuase it isnt manageable via the domain.  I also know there is a piece of software out there that does basically the same thing as the dell software, but again not manageable via GPO policy.

I dont know if WLAN Switching is an option in your BIOS, but that is exactly what it does.... I know HP has them, just dont use Dells that much to be able to confirm...

Thanks, unfortunately none of those address the issue at hand, i am assuming there just isnt a GPO for this functionality