After restart of Octoprint it is no available via the Web-UI. Browser cannot connect
What did you already try to solve it?
Login via ssh can be done without a problem.
Looking with "top", the process octoprint is consuming a lot of CPU time (140%).
In the file ~/.octoprint/logs/octoprint.log I found the line:
2021-11-15 08:48:25,426 - octoprint.filemanager.analysis - INFO - Starting analysis of local:F_Tail-1.gcode
And this was the important information. I started the last days to upload seveal gcode-Files with a "maximum mesh deviation" of 0.01mm to reduce the facet effect of large printing objects. So there were several files with about 50MB.
It seems, that the file analysis at startup time of octoprint blocks the Web-UI completely. After some minutes (the analysis was finished) Octoprint works as expected.
Systeminfo Bundle
browser.user_agent: Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:94.0) Gecko/20100101 Firefox/94.0
connectivity.connection_check: 192.168.71.32:53
connectivity.connection_ok: true
connectivity.enabled: false
connectivity.online: true
connectivity.resolution_check: octoprint.org
connectivity.resolution_ok: true
env.hardware.cores: 4
env.hardware.freq: 1400
env.hardware.ram: 914006016
env.os.bits: 32
env.os.id: linux
env.os.platform: linux
env.plugins.pi_support.model: Raspberry Pi 3 Model B Plus Rev 1.3
env.plugins.pi_support.octopi_version: 0.18.0
env.plugins.pi_support.throttle_state: 0x80000
env.python.pip: 20.3.3
env.python.version: 3.7.3
env.python.virtualenv: true
octoprint.safe_mode: false
octoprint.version: 1.7.2
printer.firmware: Marlin Ver 1.70.2 BL (Creality3D)
systeminfo.generator: systemapi