First off thanks very much for doing this and sharing it with the world. I got the image up and running on my RPi 3 Model B and can see that it is just like the OPNSense instances I have run elsewhere. (I have only recently started labbing with pfSense and OPNSense)
When I have tried to connect a second one of these it recognises the device but then the system appears to reboot (when watched from the console it just goes blank and then the boot sequence starts). Unfortunately I don't have any other USB NICs to test with. Just thought I would share my experience.
is it the latest run driver ? Also, is it possible you add urtw and urtwn drivers ? It seems their are missing, as kldload urtw and kldload urtwn return "not found" error.Xtools says it is possible to compile kernel only,but how to install it after on rpi3b+ ?
The purpose of the minimum 3GB policy is that you have the added benefit of being able to perform upgrades between major versions or even difficult minor version updates. 2GB can and will fail in this regard.
...When I have tried to connect a second one of these it recognises the device but then the system appears to reboot (when watched from the console it just goes blank and then the boot sequence starts). Unfortunately I don't have any other USB NICs to test with. Just thought I would share my experience.
Can you find anythin in the logs after the reboot?
Try a stronger power supply (3A). If you have a power supply with variable output, adjust to 5.3V. There is a limit to max. power consumption for USB-ports, at least in raspbian.