HASS - Failed to start network Manager wait online

[abcd11 (Peter Morský)]

I have HASS (OS version: Home assistant OS 9.5, core: 2023.6.2) on Raspberry Pi 4 B . I can not connect to it through mobile phone. HASS works, because automations normally work. I connected RPI to TV and seems like problem with NetworkManager.

I tried to turn off and then turn on RPi and also tried to reset router. It didnt help. I tried on cmd : “ha network update” but result was error: FATA[0000]:Error while executing rootCmd: accepts 1arg(s), received 0

Can someone help me what to do? I am adding attachment, which i hope it will help for finding the solution. I found similar topic (Failed to start Network Manager). However, I have no experience in this, so i dont know what to do and how to perform the solution. Thank you very much for help

[MaxK (Mark)]

How to Troubleshoot Raspberry Pi Crashing

Ensure you are using an appropriate power supply. See the warning at the top of this page: USB peripherals directly attached to the Pi can exceed the power supply limits (for example SSDs and Disk drives). Use the Raspberry Pi Power Supply Checker Integration to monitor your power. Always attach these to a separately powered USB hub then attach the USB hub to the Pi. Try a different power supply (power supplies can fail). The SD card, SSD, etc. may have corrupt files from a crash, p…

[bjhotch (BrianH)]

I’ve seen similar messages/issues loading HAOS on my Pi’s. The issue in each case was a clock that was off by almost a year. My suggestion - when you get the HA prompt, type “login” and get to an OS prompt. Once there, type “date” and see what is returned. Assuming it’s off like I think, lookup the “timedatectl” command to set the date/time/timezone to something closer to current. Once close, type “reboot”.

[abcd11 (Peter Morský)]

I solved it with : ha host reboot