There was such a problem, very often players began to leave because of checking signatures, not only mods but also the game itself, everything is in order with the signatures, the error pops up on completely different files, there is no pattern, the server kicks completely different players, pc characteristics from this do not depend. All keys is up to date.
The problem started to occur after I rendered the OVH server
Server build: Ryzen 7 5800x, 64 GB RAM 2900 mHz, SSD drives, Public bandwidth: 1 Gbps
OS Windows Server 2022

Tried setting different signature checking parameters (1, 2, 3), nothing helps.
Opened ports 2301-2306 UDP and TCP

What should I do to fix the problem?