Hello! I made the same bug report which never was responded to, so Im back with more detail.
At first this bug only kicked me occasionally (once per restart) for signature check error on modded servers.
Within the past 3 months it has escalated rapidly. I get kicked every 2-3 minutes for a signature check timed out error or failed, and this happens all the time. I actually cannot play on public modded servers because thats how bad it is. And now sometimes instead of kicking me my game will just crash, or not let me back in any servers at all until I restart Arma.
Now this issue was contained to modded servers, and since I almost only play exile when im on a public server that is a problem. Even wasteland servers that allow enhanced movement but it's not mandatory will kick me.
Things were already at a level of unplayable, but I could ignore the problem because I was transitioning to playing milsim or private servers only. It had been a slow transition for the past year, but I finally did it.
The other day, I got kicked from the milsim server before the op started due to a signature check issue. It didn't happen the next time I joined, so I though I was in the clear. I was wrong.
Every time I join the milsim server I get kicked once, only once, like what was happening to the modded servers initially. Im afraid the same cycle of what happened to the modded servers will start to happen to the milsim servers. The only servers this doesn't happen on is one im hosting or a vanilla server, or so I thought.
About once per Arma launch on vanilla servers I will get kicked. It might be 2 minutes into launching the game, or 2 hours. I don't know what causes it. All it says is "You have been kicked" to me, just like with the SC, but unlike with SC, there is no SC message in the chat.
So if I want a 100% kick free multiplayer experience I must host on my own pc. I seriously have no idea what is causing this, only that it's been getting worse over time.
Please help, this is effectively stopping me from playing Arma 3 online.
Another part of this bug which has gotten worse on the same time frame as the kicking, is how long it takes to load into servers. It used to take 10 seconds to get to the player selection screen, but now it takes 2-5 minutes. When in the eden editor the game freezes for a split second every time I search for an item or a unit. In zeus the game freezes for up to 10 seconds.