# Problem connecting / random disconnect caused by USB cable **URL:** \ **Category:** ❓ Something's Up\ **Created:** [May 30, 2022, 12:49pm UTC](https://forum.sienci.com/t/problem-connecting-random-disconnect-caused-by-usb-cable/6003 "2022-05-30T12:49:23Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Ryecon](https://forum.sienci.com/user_avatar/forum.sienci.com/ryecon/32/4548_2.png) [@Ryecon](https://forum.sienci.com/u/Ryecon)\ **Post date:** [May 30, 2022, 12:49pm UTC](https://forum.sienci.com/t/problem-connecting-random-disconnect-caused-by-usb-cable/6003/1 "2022-05-30T12:49:23Z")
I had problems originally connecting to and keeping connection in gSender on my laptop. It was running Win10 which would not connect/stay connected. Wiped it and installed linux and had the same problem. After viewing com port logs I saw a ‘possible EMI issue’ warning after disconnects. Swapped out the USB cable that came with the machine for a shielded Belkin cable and have not had one single issue with connection since. If anyone does have this type of connection issue (Com port connected but machine disconnected) try a shielded cable. ---
**Author:** ![elbarsal](https://forum.sienci.com/user_avatar/forum.sienci.com/elbarsal/32/3345_2.png) [@elbarsal](https://forum.sienci.com/u/elbarsal)\ **Post date:** [May 30, 2022, 12:56pm UTC](https://forum.sienci.com/t/problem-connecting-random-disconnect-caused-by-usb-cable/6003/2 "2022-05-30T12:56:39Z")
Awesome, glad you got it sorted. I had a similar issue, and it was solved by putting the router and shop vac on a separate circuit than the PC and CNC controller. EMI issues are hard to troubleshoot. ---
**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:** [June 25, 2023, 5:28pm UTC](https://forum.sienci.com/t/problem-connecting-random-disconnect-caused-by-usb-cable/6003/3 "2023-06-25T17:28:17Z")