Dwarden, honestly.
It's not, only fix I have now is to use my 3G mobile phone, I'm willing to do a direct test with you to prove what I mean! :)

Hi,
So I am testing this with a server and see this:
12:44:35 Game started.
12:44:40 Player Alwandy: Signature check timed out
12:44:40 Player Alwandy disconnected.
12:44:40 BattlEye Server: Player #0 Alwandy disconnected

And from RPT:
Server error: Player without identity Alwandy (id 116732699)
Server error: Player without identity Alwandy (id 116732699)
Server error: Player without identity Alwandy (id 116732699)
Server error: Player without identity Alwandy (id 116732699)
Server error: Player without identity Alwandy (id 116732699)
Server error: Player without identity Alwandy (id 116732699)
Server error: Player without identity Alwandy (id 116732699)
Server error: Player without identity Alwandy (id 116732699)
Server error: Player without identity Alwandy (id 116732699)
Server error: Player without identity Alwandy (id 116732699)
Server error: Player without identity Alwandy (id 116732699)
Server error: Player without identity Alwandy (id 116732699)
Server error: Player without identity Alwandy (id 116732699)

Nothing else includes signature check or equal in logs than from server console.

While using my 3G instead of my normal fiber -> I could connect completely fine.

I spoke to my ISP, as they're useless as always they obv refused to set my MTU because they had no clue what that is (They only have root access as I have only admin access and no access to change MTU).

This issue is directly related to how much packages verifySignature sends which is above what normal isps has which average is ~ 1200 and should be fixed from dev side since most clients can't!