Wireguard suddenly refuses to handshake
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This video walks through several scenarios that should be applicable here, hopefully this helps!
This video is more aimed at discussing the various ways I test and live with WireGuard on a daily basis, but I walk through the setup and configuration of each scenario.
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@robearded said in Wireguard suddenly refuses to handshake:
After I had to restart my modem (so the WAN went down for some minutes on the pfsense) this problem happened to me again. I can't seem to be able to initiate the handshake whatever I do. I also checked "Disable Gateway Monitoring Action" checkbox for the wireguard gateway, however it's still not working
It turns out this happened because of a change I did on the wireguard server without realizing it will break stuff. I'm not however sure if I did this change before the first occurrence of this problem, from what I remember it is after, but it is definitely possible to be before.
I had some DNAT iptables rules in the PostUp and PostDown config of wireguard to forward some ports to pfsense, so I can use the public IP of the wg server as a public IP for the server running pfsense. I figured out that it would be easier to DNAT all ports (except SSH) and just do the firewalling inside pfsense, so I don't have to log in to the wg server everything I want to forward another port, and I can do it all from pfsense. Well, the problem is, that I didn't realized I also forwarded the port WG was listening on. -
Hello,
i'm facing the same problem with the error status of
/usr/local/pkg/wireguard/includes/wg_service.inc: Static Routes: Gateway IP could not be found ...No handshake seems to happen anymore. Reinstalled the wireguard package several times, and also tried a new version of the kmod implementation. No success.
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@woodsomeister Post pictures of your wireguard tunnel, peers, interface and routes/gateway.
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Routes were added for the marked Wireguard interface and i also configured the interface using the right IPv4 static IP (10.0.41.1, peer is 10.0.41.2). (no screenshot)
Unfortunatly i had to switched back to IPSec, so that's why everything is deactivated. -
@woodsomeister You have to add the tunnel as an allowed IP.
Did this ever work? -
@jarhead For several weeks. In the other side is also a Opnsense under my control. Everything was working as expected, but after a restart some days ago i went into this problem.
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@xxgbhxx I tried the version 0.0.20210606_1 solution and now wireguard crashes and I get crash reports. I tried uninstalling wireguard and installing but now the WG service won't stay running.
What's my next step? -
DO NOT DO THIS.
Changing the wireguard-kmod package will cause kernel panics and take down your pfSense box.
I have the same problem with WireGuard not handshaking, but this solution DOES NOT fix it. FYI.
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@itheadquarters Same thing happened to me. You need to SSH into your box, run 'pkg install wireguard-kmod'. This will put your package back to wireguard-kmod-0.0.20211105. This doesn't fix the handshake problem, but it will stop the kernel panics.
You can check your version numbers with 'pkg info -l wireguard-kmod'
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@itheadquarters Sorry no notifications you'd replied to me. That wasn't my suggestion by the way.
I've given up with pfSense' implementation of Wireguard. I find it unstable and flakey as hell.
I purposely don't touch it once it's working and pray it's going to keep working. I've had a few unexplained random drops since I posted this and I just bypass the vpn until it comes back up which might be minutes, hours or days.
To illustrate this I have relatively recently set up a new connection to one of the VPN providers I've set the connection up to before. The settings are identical (obviously not they key's). Everything I can see is set up exactly the same as the working one and it has NEVER worked.
I've deleted and re-built that VPN 10+ times and it will never connect. In anger I set up and configured a brand new Opnsense VM using the exact same keys and settings and it worked instantly first time. It's never dropped. Not even once.
I can only go by what I find. If you're lucky, you get no issues but I have found, with my setup, Wireguard is just broken.
As soon as I get a few days free I'm going to be converting over to Opnsense full time not elast as its fairly clear to me that Netgate have walked away from the community version of PFSense.
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@xxgbhxx Does Opnsense have a variant of PFBlockerNG?
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@xxgbhxx I may have too also. I can't keep wrestling with this. I've wasted endless time trying to find out what's wrong, only to find out it's a bad implementation of the WireGuard package. I was running myself crazy, wondering if it was some problem with my ISP, or some arcane config setting. Unbelievable.
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@n3ivi0 guess that's why it is marked EXPERIMENTAL :-)
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@sly1337 Wireguard on FreeBSD has been an unmitigated disaster but at least it's going to be kernel native for v14 and written in conjunction with JD.
But we need to remember the absolutely dire implementation that led to that situation that had been funded by Netgate and then grossly mismanaged. So much so it led to a very public argument between the author of Wireshark and Netgate.
We shouldn't be surprised almost 2 years later it's still in a shambles really.
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@xxgbhxx v14 of which? FreeBSD, got it.
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@sly1337 Yeah. But more experimental in the "breaks out of the dungeon in your mountain lair, rampages through the village" kind of experimental. I just wish it worked. My pfSense box is configured perfect. I'd hate to have to go to Opnsense just to get a working implementation of Wireguard.
