# Error connecting to Klipper - mcu 'rpi': Unable to connect **URL:** \ **Category:** Sovol Klipperized SV07\ **Created:** [October 15, 2023, 1:55pm UTC](https://forum.sovol3d.com/t/error-connecting-to-klipper-mcu-rpi-unable-to-connect/3680 "2023-10-15T13:55:05Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![jm123](https://avatars.discourse-cdn.com/v4/letter/j/c37758/32.png) [@jm123](https://forum.sovol3d.com/u/jm123)\ **Post date:** [October 15, 2023, 1:55pm UTC](https://forum.sovol3d.com/t/error-connecting-to-klipper-mcu-rpi-unable-to-connect/3680/1 "2023-10-15T13:55:05Z")
Hi all, I did a reboot on the controller on the terminal via SSH. Ever since then I am getting this issue when I start my printer - mcu ‘rpi’: Unable to connect. I have looked through the logs and this is the error mcu ‘rpi’: Unable to open port: [Errno 2] No such file or directory: ‘/tmp/klipper\_host\_mcu’. Any ideas on how I can fix this? Thanks in advance. ---
**Author:** ![jm123](https://avatars.discourse-cdn.com/v4/letter/j/c37758/32.png) [@jm123](https://forum.sovol3d.com/u/jm123)\ **Post date:** [October 15, 2023, 8:54pm UTC](https://forum.sovol3d.com/t/error-connecting-to-klipper-mcu-rpi-unable-to-connect/3680/2 "2023-10-15T20:54:56Z")
I was able to bypass this issue by commenting out any lines related to the rpi mcu in the printer config file. However, this means I am not able to use the accelerometer and for some reason my webcam isn’t working either. Still looking for a way to correct this. ---
**Author:** ![rollin3d](https://avatars.discourse-cdn.com/v4/letter/r/5fc32e/32.png) [@rollin3d](https://forum.sovol3d.com/u/rollin3d)\ **Post date:** [February 11, 2024, 8:56pm UTC](https://forum.sovol3d.com/t/error-connecting-to-klipper-mcu-rpi-unable-to-connect/3680/3 "2024-02-11T20:56:46Z")
My screen is disabled as well as my webcam. Only way I can print is using the web interface.