Network bridge creation issue

[remsforian]

I have been trying to create a network bridge so I can better connect with the VM I have set up. First I tried the "add network bridge" button in the Deck. This didn't work. The server just became unreachable for about a minute, then came back with no bridge. I then tried to do it through the truenas interface (I followed this guide: https://www.youtube.com/watch?v=XBcAMd_wyI0). This also didn't work, the bridge disappeared in the test configuration stage, as I wasn't able to access the nas. What am I doing wrong here, and how can I make a network bridge?