What is the problem?
OctoPi loses connection after print starts; can't even ping the IP. Serial connection stays solid and prints complete successfully. This follows many successful prints that maintain network connection all the way through; the only recent changes are the addition of the RPi camera and a change in power supply; I added a 5.1V, 3A buck converter to eliminate undervoltage issues. Those have been solved.
What did you already try to solve it?
Nothing. I just notice the connection vanishing. I usually notice the camera feed disappearing first. The print from last night lost connection after 21 minutes (20:16 start, 20:31 loss of network connection).
EDIT: I just lost connection again after visiting the GCode Viewer and Terminal tabs. I don't know whether that's related, but I definitely did not visit the Control tab. Server is now offline and I can't reconnect. Can't ping the IP address. All other network devices are fine.
Logs (syslog, dmesg, ... no logs, no support)
Both octoprint and serial logs are here:
logs.zip (346.9 KB)
The serial log is just an excerpt because the print was very long and the log was HUGE.
Of note are these lines from octoprint.log:
2020-02-18 20:37:31,214 - octoprint.util.connectivity_checker - INFO - Connectivity changed from online to offline 2020-02-18 20:48:46,940 - octoprint.server.util.sockjs - INFO - Client connection closed: ::ffff:10.0.0.152
Additional information about your network (Hardware you are trying to connect to, hardware you are trying to connect from, router, access point, used operating systems, ...)
OctoPrint 1.3.12, OctoPi 0.17.0, Windows 10 PC, static IP assigned to both by router.