Hi Team,
We're running ovpn on Mikrotik since one year and now all our clients are disconnected. In the log we have a lot of "duplicate packet, dropping", after some investigation we saw our certificate is expired.
We tried to uncheck the "Require Client Certificate" without success.
We also try to generate a new cert an associate it to ovpn, also not working.
I reduce the MTU to 1300 instead of 1500. Nop ...
Mikrotk version: v6.48.1
/interface ovpn-server server
set auth=sha1 certificate=Server cipher="" enabled=yes keepalive-timeout=30
We're running out of idea and we need a solution to reconnect all those clients. In our situation it's almost impossible to reconfigure all clients.