Microsoft Ergonomic Keyboard 7000 losing connection

I started using a brand new microsoft 7000 wireless ergonomic keyboard which kept losing connection.  I tried all of the support options from microsoft but it kept losing connections.  I brought a usb extension so I could place the usb receiver right in front of it.  It helped a little, but I had to reconnect several times each hour.

I finally sent it back as defective and they sent me a new one.  That was the solution.  The new one works great.