Question : Dell Latitude E6510 will not allow you to pick just wireless or LAN in Windows 7, SEP crashes then

  We have installed Windows 7 on DELL Latitude E6510 laptops, when the user plugs in to our Local LAN the get "NAC" attacks caused by Symantec SEP. The reason seems to be you cannot just pick wireless or LAN so when you have both the Laptop seems to prefer  wireless.  Unfortunatley packages are also being sent out by the Local LAN,  SEP can never get the whole signal together and eventually crahes the internet, what to do?

Answer : Dell Latitude E6510 will not allow you to pick just wireless or LAN in Windows 7, SEP crashes then

The fix is to go into the Dell Laptop My Computer>Manage>DeviceManager>NetworkAdapters>Right click Wireless adapter>Properties>AdvancedTab> Highlight "Disable Upon Wired Connect">Change Value to "Enabled"> Problem is gone.