CA3LE,
I thought the same.
Since I do power all equipment off whenever I go to bed.
I worked with this some more & found the cause & a solution.
The cause was my OOMA Telo.
When starting my modem , router , & the OOMA Telo they are on their own separate Power strip.
This is so I can start them first & power cycle them without shutting down my computer if I want to.
Then I turn on a different power strip for my computer.
What was happening is the OOMA Telo started first and received 192.168.1.2 .
My computer Network Card wanted 192.168.1.2 but had to accept 192.168.1.3.
As far as I can tell my network card was denied 192.168.1.3 at first then received it.
So my computer & network card worked & showed 192.168.1.3 using ipconfig /all .
The solution was going into my router.
Then using Address Reservation for a higher IP Address 192.168.1.25 for example.
I also set the same in the OOMA Telo as a 'Static IP Address".
Now no more error shows up even after several reboots.