Would I delete everything that is on there first? This is the only thing I have not tried yet, so far, worth a shot.
Discussion
just reflashing worked for me on a issue I was having.
can you turn off all the devices except the Umbrel to locate the IP address?
when I take the SD out and put it in the reader and put that in my computer do I want to delete all the files that are on it before I begin again?