Issue Connecting to umbrel after system hung on LN node install

GM,

I have been running Umbrel OS on a HPz3 PC for a while and it has been working great.
Recently I was installing the LN node and the system hung on the spinner for a few days
After powering down the unit and turning back on I am no longer able to navigate to it.
It seems to loading okay as I can see the login to umbrel if i connect a monitor - and the boot up info looks to be all good.
No matter how hard I try i keep getting DNS_PROBE_FINISHED_NXDOMAIN
I’ve worked through some DNS cache clearing and all the usual things - cables , typos , router, firewalls etc but still no worky… Any advice to either find it or even how to re install?
tia realjode