On Thu, Aug 30, 2018 at 12:07 PM, Andrew Lunn <andrew at lunn.ch> wrote:
>> Ip address from router.
>
> You need to be more specific? You mean your own router? Not the cable
> modem? Something running openwrt/lede?

I am on a high-speed (????) wireless internet WAN (there are no high-speed
internet connections in rural areas!!!!!!).
This means that I have a router, downstream are my various devices, upstream
is the 'radio' (using the parlance of the isp) which connects me to a specific
tower and and and. I have all my equipment here on a ups. The router is
running a version of Openwrt 3.xx.
>
> What actually happened to your server? Did it loose its IP address
> when the lease expired? Do you have anything in the logs? If not, you
> might need to pull the cable out of the cable modem, and see what
> happens. Might take a while, depending on how long the lease is.

Cable modem ideas  not applicable in this instance.
Reading in the log files:
device (eno2): state change: activated -> unavailable (reason
'carrier-changed') [100  20 40]

whatever that means.

TIA

Dee