I have just received my SFT1200 and want to start using it. After a firmware upgrade to v4.3.21 I now tried to prepare my VPN setup (Ubiquiti router). This keeps failing with the error shown below:
I am not trying to update the OS itself, only the installed "plug-ins". Looking at the package filename it seems that the only version available is from December 2018.
The page you linked mostly focusses on the setup of a Wireguard VPN server. I already have a working server configured and want to use this router when I check in to a hotel, so I always have a secure connection. I don't see those debugging options on that page, maybe I am missing something?
Is it possible to enable some more debug logging on de Wireguard client? Now I only see this:
Sat Dec 7 16:01:01 2024 daemon.notice netifd: Interface 'wgclient' is setting up now
Sat Dec 7 16:01:07 2024 kern.info kernel: [ 601.576578] wireguard: wireguard-hotplug IFNAME=wgclient ACTION=REKEY-TIMEOUT
Sat Dec 7 16:01:13 2024 kern.info kernel: [ 607.401305] wireguard: wireguard-hotplug IFNAME=wgclient ACTION=REKEY-TIMEOUT
Please simply forget that this "plug-in" page exists. Updating plugins there can cause bricking the device. It's only for advanced users and very special use-cases.
There is no debug option for WireGuard in general. The page I linked is about the whole construct, you need to check each of this option. Start by making sure you do have some public IP, then by making sure the networks of the routers are different and then up to "Is Internet generally working" and "Might the hotel block the VPN"?
Never test from inside your network - always use a hotspot for testing.
It still bugs me that there is no way to debug the VPN connection. I've tried testing the VPN connection using my neighbours WiFi and using my phone's connection via usb-tethering (with WiFi turned off).
Looking at that page
Web Interface: VPN is present in UI
Network config: Netwerk of the VPN server does not have any subnet containing 192.168.8.0/24
Mobile networks: That's is aimed at setting up a Wireguard server
Port forwarding: That's is aimed at setting up a Wireguard server
Blocked ports: Port is not blocked by both client and server provider. Phone 4G connection and neighbour WiFi are able to connect other devices
Config: Config is generated by the VPN server. I tested the config file with another client on the same mobile hotspot and that works as expected.
Routing: I am routing everything through the VPN, so config contains 0.0.0.0/0 (no IPv6)
DNS server: tried both auto and 1.1.1.1
MTU: I've tried changing this value, did not help
It is not even able to initiate the connection. I also don't see any loss of packets through the network.