Identical sets of keyboard + mouse in the same office?

Question

Iron

Such a problem:
In one office, they bought 4 sets of Defender wireless keyboards and mice. As a result, after a month of work (either they were silent, or something), they are now reporting a problem that, for no specific reason, the keyboard of one PC conflicts with the keyboard of another.
Dongles are connected to RPi + WTware and then to the terminal server.
Where to dig?

Answer 1

In theory, the signals of different sets are unique.
Maybe it's in the "falling asleep" of the keyboard. Few info. What does "conflict" mean? Write on someone else's computer?

Answer 2

The correct sets communicate over a radio channel with encrypted traffic and it is impossible (from a practical point of view) to intercept or "mix" them - someone else's receiver will not be able to decrypt the transmission. So you, apparently, have Chinese junk without encryption, or sets with the same encryption key (left batch).

Answer 3

If the problem is with the kits (did you try to connect directly? Maybe your thin clients are ambiguously scattered?), then you definitely need to hand over the kits and not take more similar ones, but write a letter to the manufacturer. Imagine someone comes in, puts a keychain near a flower pot and collects all the input from the keyboards, with logins, passwords - if they type, as you say, one into the other, then the encryption is not unique. nonsecure