https not working with wireguard

DD4711

Hello,

I have a strange problem with one wireguard client connected to my home.

There are several clients connecting via wireguard to the home pfsense. With one I have problems at the moment. All other run normal. The wireguard connection is configured to route all traffic to pfsense.

The client with the problems is a Linux Mint Computer. Sometimes everything seems to be good for a while. But then I have trouble while browsing:

Websites in my home network and internet cannot be accessed via HTTPS.
Firefox shows "TLS Handshake is being performed" (translated to english). Then timeout.

Websites in my home network and internet can still be accessed via HTTP.

Currently I have no idea what to search for to narrow down the problem.

I'd really appreciate any tips.

mcury

@DD4711 Try settings this at the client side:

[Interface]
PrivateKey = CLIPPED
Address = CLIPPED
MTU = 1400

If that doesn't work, try 1300 just to confirm if the problem is indeed MTU.
Then, I'll help you to identify the correct value.

DD4711

@mcury Thank you for your help! It seems to work after adding the MTU value and reconnect. I'll test it for while and post the result.

DD4711

@mcury Sorry for late answer, i was off for some days.
Seems to work with MTU 1400.
Could an ISP change on client side be respnosible for that?

mcury

@DD4711 said in https not working with wireguard:

Sorry for late answer, i was off for some days.

np.

Could an ISP change on client side be respnosible for that?

yeap.