Connection to umbrel lost, hardware troubleshooting Raspberry Pi

[DarthCoin]

This will help
http://community.umbrel.com/t/how-to-set-a-static-ip-for-your-umbrel-machine/
and also
http://community.umbrel.com/t/umbrel-troubleshooting-guide/

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