OpenVPN Client Crashes Randomly Only With Some Users

[Kajetan321]

Hello, I'm experiencing this bug:

https://github.com/OpenVPN/openvpn-gui/issues/548

What I discovered however is that the same client that crashes when connecting to pfSense is rock solid when connecting to our old Ubiquity router. I don't know what to make of that.

We can't really deploy our new pfSense hardware with this bug active and the whole point of getting the pfSense hardware was to make the VPN faster. Any suggestions would be appreciated.

P.S. Our OpenVPN configuration is straight out of the pfSense OpenVPN Wizard. I deliberately kept everything as close to the defaults as possible.

[slu]

@Kajetan321 which pfSense version?
Any infos in the logs?

[Kajetan321]

@slu
Version:23.09.1-RELEASE (amd64)
Hardware: Netgate 6100

There is nothing in the logs, in fact the connection stays up. We tried many versions of the OpenVPN software, right now we are on OpenVPN 2.6.9.

[slu]

@Kajetan321 said in OpenVPN Client Crashes Randomly Only With Some Users:

There is nothing in the logs, in fact the connection stays up.

Did you check the MTU?
Maybe the clients behind CG-NAT?
What show an tcpdump?

[Kajetan321]

@slu OK, thanks for the suggestions, I will investigate when user is available.