Re: Simplest possible Workgroup home net?
You can absolutely feel free to accept or ignore anything I say, that's what this forum is all about.
The bottom line is that you should not do anything that exceeds your comfort level.
You would be performing these adjustments on the LAN side of the router (manual config setup), that is to say you wouldn't be messing with the WAN setup config at all and a factory reset should not be required (resetting the 2wire, would put you back to square one and you would have to configure everything all over again). You can simply make notes as to the router's current settings before you make any changes and return them to their current state when ever you want.
I sense some overall reluctance on your part to proceed further and I would suggest that you go with your gut and forget the whole deal. What seems simple to me and perhaps others may very well seem ultra complex to others so since you obviously know your limitations then avoid getting in over your head and keep the current configuration.
The only other thing that I might suggest is that you may want to increase the length of time for your DHCP leases to something more than the current setting of 24 hours. If the selection has a drop down you should choose something greater like a week or a month. If you have any documentation on the device it should provide some alternative settings for this.
What's happening now is, say you boot up your two machines at 8:00 am every morning. Everything is working fine and you shut down everything that evening and the next day at 8:00 am you do the same thing. Instead of simply renewing or keeping the ipaddress that it already has the individual computer starts over, since the lease time has expired it solicits a new IP address address at which time depending on the DHCP server it may get the same one again but more likely will get a new and different one.
Yesterday was, Today is, but ahh Tomorrow...mystery, suspense and a promise of hope.

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