I am using OP for years now but only recently returned to 3D printing after a longer break (1-2 years). The problem started a while after I first installed OP on my RPi3 around 4 years ago. I remember trying everthing I could think of back in the day and now here I am again. I am quite tech savvy so plz dont spare me.
- Problem details:
I can use OP via the web interface as long as I want and controll the printer, play around on the controll/temp tabs. There is no action I can perform that reproduces the problem outside of printing via OP, even if it is connected for several days.
A variable time after a print starts (5-20min) OP becomes unreachable via the web interface, via SSH and I dont even get a ping response (doesnt matter what device I use). The router shows my Pi is still connected during this time though... Wifi signal is excellent the whole time.
During this time OP prints on without any issues achieving top quality without signs of connection/transfer issues. Even timelapse works fine.
After the print is finished most of the time I can reconnect within 1-5 minutes. If this is the case the RPi did not restart and I can continue exactly where I left. Rarely I am not able to reconnect after printing finished and need to power cycle.
Was a Wanhao I3 (Melzi board) when I bought it. Now its an abomination with a SKR 1.4 running Marlin 2.X bugfix.
Raspberry Pi 3 Model B ARM-Cortex-A53 4x 1,2GHz, 1GB RAM - no overclocking, passive cooling block, doesnt run hot.
Used a quality 2A micro USB power supply until a week ago, when I switched to a quality 2.5A PSU just to check.
Some Logitech Webcam (doesnt make a difference if its connected)
TP-Link Archer running OpenWRT (used a different one before, no difference), no issues at all.
- What did I try?
Tryed multiple Octoprint FW Versions over the years and had several clean installs on different high quality SD cards. Latest clean install was around a week ago.
Printer mainboard swapped from Melzi to SKR 1.4
Tryed without any plugins and without webcam
Applyed electrical tape to the 5V pin on the USB connector a few days ago.
Tryed different USB cables.
Used different high quality power supplys for the RPi
Maybe a lot more I cant remember
- What did I NOT try?
Never used a different RPi since I only have a Pi zero around and dont want to get another one. Running other software on the RPi doesnt cause issues though and there are no apparent hardware issues or hints of such in my opinion.octoprint.log (81.1 KB) freaked.zip (14.1 KB)
syslogs.zip (122.6 KB)