Post the details of your contract.

So it is THEIR physical server. Post the details of your lease. I bet they get to have access how and when they wish, since it is their physical hardware. You say you have an unmanaged plan, yet you want them to help you fix your problems. Doesn't work that way. You say they found an issue with your NIC. Did they change it out? Did you ask them to?

Bottom line ... stop whining and post ALL the information.

1. Contact your local Red Cross and ask them what is needed.
2. Contact your local Salvation Army and ask them what is needed.

If the answers from 1. or 2. correspond to something you are
good at bringing and good at dealing with, load up, get going
make contact with the local branch of the RC or SA and help.

If the answers from 1. and 2. do not correspond to something
you are good at, stay home and donate money. i.e. if what is
really needed is volunteer sheet rock installers, don't go
unless you are a sheet rock installer.