Regarding WireGuard:
The WireGuard logs on the AXT1800 indicate that it may not be able to connect to the server.
You can refer to this guide to check whether the WireGuard VPN server on your NetGate pfSense has been configured correctly:
You can also try exporting the configuration file to another device (such as a phone) and test it using a different network (e.g., cellular data) to verify whether it works as expected.
Regarding Tailscale:
Since ping is working normally, it suggests that Tailscale is running.
Have you checked the firewall settings on your NetGate pfSense? Specifically, whether it allows the AXT1800’s subnet (default: 192.168.8.0/24) to access those devices?
(As we are not very familiar with NetGate pfSense, we’re unable to provide detailed configuration guidance.)