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#31
When I built my desktop four years ago I bought a keyboard and mouse combo. They shared the same USB dongle. The mouse worked fine but the keyboard was unresponsive most of the time. I sometimes had to hit a key 10 times to get it to respond
I tried a couple things. I moved the dongle from a USB 3.0 port in the front to a USB 2.0 port in the back. I also moved most of my WiFi device to 5GHz. I did this because I read that there was potential interference at 2.4GHz. I also read that some people had problems with USB dongles plugged into USB 3.0.
I still don't know which of the things I did made the difference. Whatever I did the keyboard works a lot better now.
Is your keyboard using a wireless USB dongle? If it is you might try a USB 2.0 port to see if that makes a difference.