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Logitech Unified Receiver "Problems"
on September 18, 2014
When I received the unit, it looked like it had been opened and returned (the batteries were installed), but the "pull" tabs for the batteries were not in place. One was in the box laying loose, the other one was missing completely.
I plugged the unit into my media computer. Nothing happened (did not install). Checked settings (turn off/on keyboard & mouse and try to pair again), but no software loaded and neither the keyboard or mouse would work. I had a Logitech trackball on the unit already.
Moved to a new computer (same setup with trackball). Plugged in the USB wireless receiver (unified). Software installed for the unified USB receiver (automatically)! Paired the keyboard & mouse, and checked the software. It shows 2 unified receivers, 1-trackball, other one with keyboard/mouse. Unpaired keyboard/mouse & USB receiver. Ran software & paired keyboard and mouse. It works properly. Unpaired keyboard/mouse.
Return to media PC. Download unified software from Logitech. Install Logitech unifying software. Paired the keyboard & mouse. It now works on the media PC.
While it was a hassle to install, it seems to work properly after that.
Since it looked like it had been opened, I believe the previous owner was not able to successfully pair the devices - like my first try.