UC300ETH 5LPT looses connection

[skovnesky]

Just finishing my build had everything working did three different projects. Was going to face off my waste board and lost my ethernet connection. restarted UCCNC and when I turn on spindle I loose the ethernet connection. I have a shielded cable from the Huanyany VFD with the shield grounded at the VFD. I have a 2.2 KW water cooled spindle.
Spindle. I can run the spindle from the VFD and it seems to work fine if I don't have UCCNC software enabled. But as soon as i turn on from UCCNC my connection drops. I even moved the VFD outside the electrical cabinet and it does the same thing. I put a new ethernet cable on, I tried a different computer it does same thing. Not sure what to try next.

[cncdrive]

Check your 5Volts power supply which is powering your UC300ETH.
Make sure that it is grounded proprly to a single ground point together with the VFD.
Also you can try to filter the mains Voltage input of the powersupply.
You could also try to use another 5V powersupply, a better filtered one.

[skovnesky]

Grounding the 5volt supply to the UC300 did the trick. Back up and running. Thank you for your help.