# Random stops during job **URL:** \ **Category:** ❓ Question\ **Created:** [November 24, 2023, 7:11pm UTC](https://forum.sienci.com/t/random-stops-during-job/10398 "2023-11-24T19:11:35Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![timarland](https://forum.sienci.com/letter_avatar_proxy/v4/letter/t/ee59a6/32.png) [@timarland](https://forum.sienci.com/u/timarland)\ **Post date:** [November 24, 2023, 7:11pm UTC](https://forum.sienci.com/t/random-stops-during-job/10398/1 "2023-11-24T19:11:35Z")
Hi team - I was running a surfacing job this morning (the built in one) and the job just stopped a few passes in. Console showed the job still running, and all of the motion controls were greyed out, but router wasn’t moving. I closed and opened gSender, and it seemed normal. I set up another surfacing job, and this one made it further, but it stopped again with the same behavior. I haven’t had a chance to try a different job yet, and this is the first time I’ve had problems - not exactly sure where to start troubleshooting. Any ideas or advice? Thanks! ---
**Author:** ![Jake](https://forum.sienci.com/user_avatar/forum.sienci.com/jake/32/2491_2.png) [@Jake](https://forum.sienci.com/u/Jake)\ **Post date:** [November 25, 2023, 3:20pm UTC](https://forum.sienci.com/t/random-stops-during-job/10398/2 "2023-11-25T15:20:35Z")
Hello! Have you checked your settings for your USB port? It maybe going to sleep along the way and interrupting the communications between your computer and CNC. Note I didn’t say computer going to sleep, just the port. That, in my opinion would be a good place to start. Please let us know your solution once you find it. Have a look at this post, may explain it better than I can with only one cup of coffee. [USB Selective Suspend in Windows 11 - #4 by Condor00](https://forum.sienci.com/t/usb-selective-suspend-in-windows-11/10345/4) Jake ---
**Author:** ![timarland](https://forum.sienci.com/letter_avatar_proxy/v4/letter/t/ee59a6/32.png) [@timarland](https://forum.sienci.com/u/timarland)\ **Post date:** [November 25, 2023, 6:14pm UTC](https://forum.sienci.com/t/random-stops-during-job/10398/3 "2023-11-25T18:14:40Z")
Thanks! I did make this change, but the problem persists. I’m pretty sure now that it’s something on the cnc side - either the cable (hopefully) or the controller. I tried to run a job from my laptop, same results. I’m going to replace the cable and give it another shot this afternoon. Thanks! ---
**Author:** ![timarland](https://forum.sienci.com/letter_avatar_proxy/v4/letter/t/ee59a6/32.png) [@timarland](https://forum.sienci.com/u/timarland)\ **Post date:** [November 27, 2023, 1:56am UTC](https://forum.sienci.com/t/random-stops-during-job/10398/4 "2023-11-27T01:56:15Z")
So I thought I had an epiphany - and maybe I still did. The piece I was flattening was zebrawood/epoxy board -not sure if that makes a difference. Anywho, during the time this job kept stopping, I touched the router and it shocked me a little - static. I read that most causes of random disconnects have to do with RF or other interference with the USB connecting cable. I thought maybe static electricity might be the issue. I ran over to rockler and got an anti-static dust collector hose, installed it, and got back to work. I had a piece of cherry sans epoxy I needed to cut for a project, so I did that. 2.5 hour total time, no stops, no issues. Figured I had it sorted, so I got the epoxy board out again to finish the flattening - half way in, stopped again. So for clarity - it seems to only happen with this epoxy board. Does epoxy generate more static during a surfacing operation? Something else specific to the material? ---
**Author:** ![gwilki](https://forum.sienci.com/user_avatar/forum.sienci.com/gwilki/32/366_2.png) [@gwilki](https://forum.sienci.com/u/gwilki)\ **Post date:** [November 27, 2023, 2:01pm UTC](https://forum.sienci.com/t/random-stops-during-job/10398/5 "2023-11-27T14:01:16Z")
@timarland Milling epoxy and any of the acrylics definitely creates more static than milling wood. I’m not suggesting that this is the definitive cause of your problem, though. ---
**Author:** ![chrismakesstuff](https://forum.sienci.com/user_avatar/forum.sienci.com/chrismakesstuff/32/10759_2.png) [@chrismakesstuff](https://forum.sienci.com/u/chrismakesstuff)\ **Post date:** [March 17, 2026, 7:28pm UTC](https://forum.sienci.com/t/random-stops-during-job/10398/6 "2026-03-17T19:28:37Z")