Has your wireless keyboard stopped working?

Question

Keyboard

All of a sudden my logitech k400 wireless keyboard stopped working. Displayed in device manager; changed batteries; the adapter is working; the keyboard was not dropped or flooded. Thanks in advance!

Answer 1

Download support.logitech.com/software/unifying
, see if the keyboard is visible
as an option, try rebooting\distorting the adapter\other PC, as advised in other answers

Answer 2

Standard set of checks:
1. Plug into another computer.
2. Register another mouse or keyboard on this adapter
3. Register this keyboard on another adapter.
Draw conclusions, faulty for repair (exchange) under warranty or in the trash.