I've got a mikrotik router working as openvpn server with linux, windows, and Android clients.
Now I want to create a backup server with linux. I created a certificate for this server with the mikrotik certificate manager. Exported the CA.crt, backupserver.crt and backupserver.key.
The clients can connect with the same config as for the mikrotik (only changing the IP) but there is no traffic. When I try to ping the vpn ip of the server, I receive an error of "Destination Host Unreachable".
I think it may be a certificate problem but I don't see any errors and don't know how to check for the problem.
Server config:
https://pastebin.com/8tRbcr5B
Client config:
https://pastebin.com/waEYPfU3
Any help please?