Raspberry fails to connect to localHost

hello guys ! I am new to raspberry but I wanted to try integrating Home assistant .

The problem I’m experiencing is the following:

  1. as per procedure I install the Home Assistant environment on my Raspberry Pi 4 (using Raspberry Pi Image) → Home Assistant OS 14.2 .

  2. I start the installation and connect to http://homeassistant.local:8123/ and here everything goes well (I set the preferences etc.) .

  3. the next day I try to reconnect but I get to the page Unable to reach the site → ERR_CONNECTION_REFUSED .

  4. I restart the services as per the manual, the services appear in Running and if I ping the machine it responds.

This is the third time I have lost the project! Can you tell me why?

[francisp] , thank you for your reply . i am now using raspberry pi 4 with original power supply and 64 GB sd card .
The red light stays on while the green one flashes continuously . connecting the Raspberry to the screen I access the Home assistant screen correctly and if I run core info I see that the core is running .

The Raspberry is also connected with a LAN cable

update:

  1. I reinstalled Home Assistant on the SD card from scratch, doing a clean install

  2. once everything was set up I performed a clean shutdown from Home Assistant .

  3. waited for the green light to go out and the HDMI to give me no signal , then disconnected raspberry .

Now I have reconnected everything , but cannot connect to homeassistant.local:8123 .

Connecting to http://homeassistant.local:4357/ I have

Supervisor: Connected

Supported: Supported

Healthy: Healthy

Also connecting the HDMI cable I get " no signal "

Can anyone help me ? it’s the third time I’ve started the job again