FixHub Web Console Connection Error on Ubuntu(Solved: user permission)

I was encountering a "Connection error" when trying to connect my FixHub Smart Soldering Iron to the web console at ifixit.com/fixhub/console. I am running Ubuntu 24.04.2 LTS and using the latest Google Chrome browser.

The error message stated: "Make sure you do not already have another connection open and try again."

I tried the following troubleshooting steps without success:

• Fresh boot with no other applications or browser tabs open.
• Tried multiple USB ports.

The solution that worked for me was adding my user account to the dialout group. I used the command: sudo usermod -a -G dialout <username> (replacing <username> with my actual username). After running this command and then logging out and back in, I verified I was added to the group using groups <username> and was then able to connect to the web console successfully after a reboot.

This seems to be a common permission issue on Linux systems for accessing serial ports.