GL_Philly solved the Problem with his Post of July 19, 2013 as Follows:
Thunderbolt Display USB Keyboard Problem Workaround
Hi everyone,
I've seen hundreds of messages related to the fact that the thunderbolt displays will occasionally not recognize a wired apple keyboard connected to the display when connecting to a laptop. I might have a workaround for those affected.
My 2103 15" MacBook Pro would never see the keyboard once I unplugged the unified thunderbolt cable and plugged it back in. I've done everything from doing the switching USB ports dance, turning display off (pulling out power cable), connecting and reconnecting in various different steps, and even tried a new thunderbolt cable to bypass the built in one. Nothing ever worked, or a least, worked consistently. USB drives, iphone cables etc all work just fine, so I know the USB jacks are functioning.
I discovered that if you use the USB keyboard extender cable that Apple provides with some macs, and plug your keyboard into the the display through that cable, it will see the keyboard instantly. Everytime. We've tried it on a few computers at work and it solved the problem on those as well. I should note that the keyboards we are using are the latest apple ones with the launchpad key on F4.
If you are having problems, give it a shot. It just might solve the issue, until Apple gets it act together and acknowledges there is a problem.
Happy typing. Posted on Jul 19, 2013 4:46 AM by GL_Philly
That Forum was Closed so Apple said I had to Repost this with New Question. I am doing so to Thank GL_Philly because his suggestion worked Perfectly for me and now I can switch the Keyboard to Any of the 3 USB Ports on the Back of my Monitor and they ALL recognize my Apple Keyboard. What a Simple and Un-Explainable Solution. Why on Earth would an Extension Cord Work in place of the Same Connection using a Shorter Direct Cable!!!
