OctoPrint version-1.5.3 stable, OctoPi version - 0.18?, Ender 3 v2 with 4.2.7 board, firmware-jyers, browser-chrome, operating system - windows 10, ... as much data as possible
Hoping you might be able to spot the problem in the logs. Currently im just printing from the SD card as the failed prints are no fun.
To follow up on @foosel's comment, there was a semi-recent large refactoring of the serial communication in Marlin, and the developers are still tracking down various serial communications breakages due to that, specially in configurations with multiple serial ports defined (for example if you have a TFT display). So this may be related to that.
Thanks for having a look. I reinstalled the base Marlin I believe. The first print was good but the second print lost the connection mid SD print. Could you please have a look at the new log files?
I think I might have solved the issue. Short story: Grounding issue
Long story: I saw that some ender 3 v2's were suffering from layer shifting issues and creality suggested that the ground the Y axis motor to the frame and for some people it actually fixed the layers shifting issue so I thought I would give it a shot incase my board was somehow getting shocks from static build up. I ran a cable from the power supply to in between the stepper motor and frame and so far so good. No failed connections for 2 days so far.