# Klipper can no longer connect to MCU **URL:** \ **Category:** General Discussion\ **Created:** [March 24, 2024, 1:50am UTC](https://klipper.discourse.group/t/klipper-can-no-longer-connect-to-mcu/15165 "2024-03-24T01:50:55Z")\ **Posts on this page:** 1\ **Showing post:** 3
**Author:** ![Jonathjon](https://avatars.discourse-cdn.com/v4/letter/j/b38774/32.png) [@Jonathjon](https://klipper.discourse.group/u/Jonathjon)\ **Post date:** [March 24, 2024, 11:49am UTC](https://klipper.discourse.group/t/klipper-can-no-longer-connect-to-mcu/15165/3 "2024-03-24T11:49:02Z")
Good morning. My original setup was from [this guide](https://github.com/JamesH1978/KlipperStuff/blob/main/MantaM8PKataCAN.md) basically. Although it was from the author on the Klipper Discord server and he sent me the link afterwards. It all worked great. I was digging around looking for answers last night and came across [this thread](https://klipper.discourse.group/t/lost-can-uuid-after-reboot-manta-m8p-v2/12259) that is basically my issue, but the fix isn’t working for me. I did originally use katapult to set up the canboot on both the ebb36 and the M8p. But the uuid and everything is gone from the m8p. > [@mykepredko](#): > > First off, your `printer.cfg` looks like it only consists of: Yes, as I was just trying to get the board all flashed and ready, Then once I had it on the printer I was going to set up my printer.cfg file. Only to find out that it wasn’t working when I turned it it all on lol. > [@mykepredko](#): > > you’re doing a rebuild of Klipper and it looks like its for the EBB36. After so many times of trying I was going to go back and re-flash the board, but I cant get a serial ID or a uuid to be able to flash it. Hopefully these answers don’t make things more confusing. Thanks for the help! --- _[View the full topic](https://klipper.discourse.group/t/klipper-can-no-longer-connect-to-mcu/15165)._