@Collin said in Duet 3 Web Address in Stand Alone Mode:

Now I can get into YAT and it said my IP address was 0.0.0.0 using the m552 command.

Thats not a valid IP adderss but a special case to use DHCP to have your router assign an IP address dynamically; so either connect to your router or set a valid static IP for both the Duet and the computer.

I had to replace it in 3 difference locations inside the driver files.

(as a side note you only had to replace it in the correct place for your operating system, but easier to do all))