# Bytes\_retransmit and Timeout with MCU

**URL:** <https://klipper.discourse.group/t/bytes-retransmit-and-timeout-with-mcu/20598>\
**Category:** General Discussion\
**Created:** [December 11, 2024, 9:23am UTC](https://klipper.discourse.group/t/bytes-retransmit-and-timeout-with-mcu/20598 "2024-12-11T09:23:39Z")\
**Posts on this page:** 1\
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**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:** [December 11, 2024, 9:45am UTC](https://klipper.discourse.group/t/bytes-retransmit-and-timeout-with-mcu/20598/2 "2024-12-11T09:45:25Z")

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If the printer has worked flawlessly so far and now suddenly throws this error, this suggests a failure of an electrical component. Either a component itself or the wiring to it.  
See [Timeout with MCU / Lost communication with MCU](https://klipper.discourse.group/t/timeout-with-mcu-lost-communication-with-mcu/6639)

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