AutoCAD lost connection to keyboard

[mario.gallardo]

Suddenly, all my AutoCAD versions (2018, 2017, 2016) lost connection to keyboard. I cannot type commands. The mouse can high-lite ribbon commands, but these don't respond.
I have restarted all versions, not luck, problem persist.
This is very frustrating.
Any ideas how to correct this issue?

Mario Gallardo
mario.gallardo@siemens.com

[pendean]

Wireless keyboard? or wired?
Did you change it yet to confirm it the problem is with the keyboard?
Turn off, count to 10, then restart Windows yet? Did that help?

[rkmcswain]

The mouse can high-lite ribbon commands, but these don't respond.

^^^^^^^^^^^ what does that mean, exactly?