Doesn't work on 3 PCs out of the box. Called 24/7 tech support, got through quickly and was told to start PC 1 when it boots up, start PC 2 etc. Didn't work. Called tech support, rebooted all 3 machines (you only see one so just turn it off), he said it didn't matter what order the pcs were started in. Tried two different keyboards. My device worked on whichever PC started first and only on it. There is no switching between them.
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