# New Setup using Ethernet not communicating to Controller **URL:** \ **Category:** LightBurn Software Questions\ **Tags:** ruida, windows11, windows, full-spectrum\ **Created:** [October 14, 2025, 4:16pm UTC](https://forum.lightburnsoftware.com/t/new-setup-using-ethernet-not-communicating-to-controller/181794 "2025-10-14T16:16:26Z")\ **Posts on this page:** 1\ **Showing post:** 2
**Author:** ![ednisley](https://forum.lightburnsoftware.com/user_avatar/forum.lightburnsoftware.com/ednisley/32/40455_2.png) [@ednisley](https://forum.lightburnsoftware.com/u/ednisley)\ **Post date:** [October 14, 2025, 4:37pm UTC](https://forum.lightburnsoftware.com/t/new-setup-using-ethernet-not-communicating-to-controller/181794/2 "2025-10-14T16:37:14Z")
> [@MaxBodine](#): > > not sure what to do next The doc gives some procedures & debugging tips: > **[Connect to a Ruida Laser via Ethernet - LightBurn Documentation](https://docs.lightburnsoftware.com/2.0/Guides/RuidaEthernet/)** > > Better software for laser cutters If you’re connecting the Ruida controller and your PC to the LAN, rather than directly, this rather lengthy discussion covers the problems arising from having the controller’s IP address squatted on by another device due to the router’s DHCP: > [@Hello fellow laser wizards](https://forum.lightburnsoftware.com/t/topic/139052/): > > HELLO, I have a tech problem. My Omtech AF2028 stopped communicating via ethernet. I replaced the cable and still having message, Data not transferred, controller busy or paused. checked IP Adress and replace cable USB connection works fine my modem and hub is fine suggestions are seriously appreciated Bob If those don’t get it running, then [screenshots](https://www.take-a-screenshot.org/) of the `Device` setup and the Windows network setup will let us look over your shoulder. --- _[View the full topic](https://forum.lightburnsoftware.com/t/new-setup-using-ethernet-not-communicating-to-controller/181794)._