# Longmill is On and Connected But not responding to Commands

**URL:** <https://forum.sienci.com/t/longmill-is-on-and-connected-but-not-responding-to-commands/6104>\
**Category:** ❓ Something's Up\
**Created:** [June 17, 2022, 5:39pm UTC](https://forum.sienci.com/t/longmill-is-on-and-connected-but-not-responding-to-commands/6104 "2022-06-17T17:39:59Z")\
**Posts on this page:** 1\
**Showing post:** 11

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**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 20, 2022, 2:06pm UTC](https://forum.sienci.com/t/longmill-is-on-and-connected-but-not-responding-to-commands/6104/11 "2022-06-20T14:06:40Z")

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@SearsWoodshop There have been several threads here on the issue that you are having. So far, the issue has been the on/off switch on the controller box on early models.

The solution is to bypass the switch. Here is one of the threads:

> [@No red lights on controller](https://forum.sienci.com/t/no-red-lights-on-controller/1881):
>
> I have no red lights, but to do have a green light on the power brick, and I can also see a tiny green LED flashing close to where the power comes into the controller (maybe the arduino?). Jogging the power switch has no effect. Machine was bought in April - any suggestions?

If you have a meter, you may want to confirm that the power brick is outputting the correct voltage before doing the switch bypass. Once bypassed, you will need to plug the brick into a switched power bar or something similar. Let us know how you make out.

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