client command line issues

I saw a few posts about this but none offered a solution for me.

I have installed the client software on my desktop(laptop will be a problem for another day) and cannot enter any commands.  I have the dongle plugged in.  I can change tabs and look at settings but that is all.  If I use the ipad or console I can see the changes appear on my client software.  I took it out of mirror mode but still get nothing.  What am I missing?

 

Thanks in advance.

 

John

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