# Is CB1 from BTT enough? Lost connection to MCU

**URL:** <https://klipper.discourse.group/t/is-cb1-from-btt-enough-lost-connection-to-mcu/7353>\
**Category:** General Discussion\
**Created:** [March 19, 2023, 8:13pm UTC](https://klipper.discourse.group/t/is-cb1-from-btt-enough-lost-connection-to-mcu/7353 "2023-03-19T20:13:24Z")\
**Posts on this page:** 1\
**Showing post:** 2

<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:** [March 19, 2023, 8:39pm UTC](https://klipper.discourse.group/t/is-cb1-from-btt-enough-lost-connection-to-mcu/7353/2 "2023-03-19T20:39:30Z")

</div>

```auto
Timeout with MCU 'mcu' (eventtime=10178.658838)
Transition to shutdown state: Lost communication with MCU 'mcu'

```

This is the error from your log. Refer to [Timeout with MCU / Lost communication with MCU](https://klipper.discourse.group/t/timeout-with-mcu-lost-communication-with-mcu/6639) for potential solutions

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_[View the full topic](https://klipper.discourse.group/t/is-cb1-from-btt-enough-lost-connection-to-mcu/7353)._