Thanks.

I am definitely going to upgrade all clients to Pro or better. However, I will have to upgrade client computers one at a time, when I have time. In the meantime, the old network setup will still have to work as we use AC v3 until we are ready. Correct me if I am wrong, but I have to finish upgrading all computers before I can start using the server as DHCP since it won't recognize Home versions?

My weirdness with IP addresses arose because my former addresses started with 105.105.x.n.

I will be going to San Francisco next week, and another week for upgrading client Windows.

Once I have upgraded all computers, I will turn off the router DHCP, and somehow turn on the server's. I will still stay on AC v3 in production but begin a trial upgrade process to v4 and then v5. If successful, then I will ______ (somehow update the SQL with then current data? uninstall and then reinstall?) As usual, I will be doing this on nights and weekends, so I feel safer if I gave myself lots of time to play, instead of having to commit to migration over one weekend with no tech support.

Did I miss anything?

Thanks again for all the help and support.