I've been using this KVM switch for a few months now and it has great features especially the mic and audio output switching. However, he has an unpleasant habit. Sometimes he just forgets what it is and what it's related to. During this time, one of the link lights will flash, but none of the four buttons to select either machine will work, and any machines booted up during this time will not "see" the keyboard or mouse. I don't have a standard way to fix it, but if you happen to disconnect and reconnect different keyboard and mouse ports, it syncs back up and works until next time. Note. This only happens when all four computers are idle and then one or more start up.
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