# MCU randomly disconnecting

**URL:** <https://klipper.discourse.group/t/mcu-randomly-disconnecting/23824>\
**Category:** General Discussion\
**Created:** [June 8, 2025, 3:45pm UTC](https://klipper.discourse.group/t/mcu-randomly-disconnecting/23824 "2025-06-08T15:45:21Z")\
**Posts on this page:** 1\
**Showing post:** 8

<div class="post-metadata">

**Author:** ![Sineos](https://yyz2.discourse-cdn.com/free1/user_avatar/klipper.discourse.group/sineos/32/18_2.png) [@Sineos](https://klipper.discourse.group/u/Sineos)\
**Post date:** [June 8, 2025, 6:55pm UTC](https://klipper.discourse.group/t/mcu-randomly-disconnecting/23824/8 "2025-06-08T18:55:04Z")

</div>

This is the “usual”

```auto
Lost communication with MCU 'mcu'

```

error. It is right in both logs. See [Timeout with MCU / Lost communication with MCU](https://klipper.discourse.group/t/timeout-with-mcu-lost-communication-with-mcu/6639)

Since you’ve already identified the cam as a potential source, have you tried disconnecting it completely?  
If this doesn’t work, take a look at the other sources listed in the provided link.

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