Connection to umbrel lost, hardware troubleshooting Raspberry Pi

Hi there
I have found that my node is not working after 6 months of running node without any problems. Now I can not connect with my pc over the network to umbrel.local. I also don’t know what IP is used to try to ping it. If I plug external monitor directly I don’t have any video signal from RasPi. Also I have try to connect SSD to my W10 pc, and windows don’t noticed any hardware connected. The lights and ventilation on RasPi is working. Don’t know how to approach to troubleshoot and repair my node.

Any help would be great


This will help
and also

Keep in mind: this forum have a section of guides that you must consult first.

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