openvpn server 'ovpns9' user cert CN '' address '' - disconnected

Summer

On a SG-3100 after upgrade to 22.01 started to show this messages:

Fatal TLS error (check_tls_errors_co), restarting
Peer tried unsupported key-method 1
 openvpn server 'ovpns9' user cert CN '' address '' - disconnected

But how can I understand:

what is 'openvpn9' ?
who's the user that seems empty ?
what's the address that seems empty too?

Thanks, BR

bingo600

@summer
ovpns9 = "Server 9" ... The 9'th server you defined

Are you using a TLS Key , smells a bit of an issue there ??

Status --> Interfaces might give a hint of the s9 interface

Summer

Thank you for the reply @bingo600, I've checked and the TLS flag is missing, I cannot set that because some clients need this disabled.

Please see: https://forum.mikrotik.com/viewtopic.php?p=704530

Anyway in the log I can see other rows like the one above but the user and address are filled out. This means someone is trying to use this connection?

Thanks, BR

bingo600

@summer
I would agree that something is hitting that ip/port (could be a simple portscan or worse)
But if you have a secure setup , there is prob. no reason to worry.

/Bingo