Simplify3D User Forum

We added the ability to connect to Duet printers in Version 5.1. You just need to make sure to set the port to 80. It might try to use something like 3000 by default, but the Duet uses port 80.

There's a section on our FAQ page with other suggestions if you are still having trouble connecting:
https://www.simplify3d.com/resources/faq/#quest-6354

I have the same problem. It tries to connect but... Any suggestions as to how to resolve this ?

Are you using port 80 as recommended above? Did you make sure to type the same IP address that is displayed on the Duet settings page?