Authenticate/Decrypt packet error in openvpn

[kopacatu]

An error message was occurred when I was connecting with my openvpn server through tcp or udp connection (on an openvpn client windows), the message was "Authenticate/Decrypt packet error".

Code: Select all

 Sat Jun 10 03:08:08 2017 Authenticate/Decrypt packet error: bad packet ID (may be a replay): [ #235853 ] -- see the man page entry for --no-replay and --replay-window for more info or silence this warning with --mute-replay-warnings

        Sat Jun 10 03:08:36 2017 Authenticate/Decrypt packet error: bad packet ID (may be a replay): [ #491688 ] -- see the man page entry for --no-replay and --replay-window for more info or silence this warning with --mute-replay-warnings

        Sat Jun 10 03:08:36 2017 Authenticate/Decrypt packet error: bad packet ID (may be a replay): [ #491701 ] -- see the man page entry for --no-replay and --replay-window for more info or silence this warning with --mute-replay-warnings

During this repeated message, about 700MB uploaded from my host!. Is this issue classified as Man In The Middle Attack (MITM) ?

I hope soon response. Best Regards.

[novaflash]

When you get the replay error it usually means that packets are being repeated for some reason, often due to packet loss. You should check to see if your MTU and your packet loss are okay on this Internet connection, and that it doesn't suffer from extreme lag.

[kopacatu]

the problem is still

[kopacatu]

When you get the replay error it usually means that packets are being repeated for some reason, often due to packet loss. You should check to see if your MTU and your packet loss are okay on this Internet connection, and that it doesn't suffer from extreme lag.

i changed MTU and this error occurred only on UDP connection protocol , What do you think of the problem ? @novaflash

[novaflash]

I think your connection sucks and that is why packets are arriving in a weird way. You may need to just stick to TCP in your situation.