Socket server problem

[H84Gabor]

Hi all,

I've got a socket server with many clients and it all used to work fine. Just recently this receiving line:
RECEIVED_MESSAGE = CLIENT.recv(32768)
for many clients started to produce this:
b''
(If I print the RECEIVED_MESSAGE it prints this: b'')
It is apparently empty received data and it being in a while True loop it keeps producing this endlessly and very fast. I would really appreciate any thoughts on this as I've no clue what's happening. It doesn't do it in every case but for many clients (randomly).

Thanks,
Gabor