HP wireless keyboard and mouse both staopped working yesterday

[Ginger231]

My wireless keyboard and mouse BOTH stopped working yesterday.  They were fine and I used them the previous night, then yesterday evening neither worked.  Keyboard is the HP keyboard that came with my HP Envy23 touchSmart.  Has always worked.  I put new batteries in, but still no response. No lights.  Mouse is the HP Mouse that came with the computer - lights on, red lisght, turned on and off , waited, tried again, put new batteries in even though the lights were on, still no connection, no response from the computer.

One weird thing - when I turned on the computer last night, it very briefly had a black screen with some commands going on, but disappeared before I could even read any of it.  The computer had turned off apparently unexpectedly, and then was booting back up.  Is that a clue?

A wired keyboard works, and a wireless mouse with a Dongle works, but I still can get no response at all from my original wireless keyboarad and mouse. 

What Happened?

[BeemerBiker]

The WiFi dongle for the mouse and keyboard can be seen in this video

https://www.google.com/search?q=HP+ENVY+Recline+23+replace+dongle

Remove it and put it back in is about all I can think of,. Maybe it is loose.

if the receive no longer works in that slot try another slot on the side.

If it is broken I can make a suggestion.