So FWIW, I have my 857 set up to take signal from the RG and broadcast my wireless network. I have done all of the setup according to the plan to "bridge" by getting into all of the QoS settings and such. The network is somewhat stable, and the signal is much better in the rear of my house via my DAP 1360 repeater. I have upgraded to the 1.02 FW, and all seems well. There are intermittent signal drops, which are a pain, but I have solved the issue by toggling the wireless on/off button to reset the adapter. Signal resets quickly and I am back up and running. I assume this is the signals battling or some such issue, even though I have disabled the RG SSID broadcast.
So, I am happy, but this is a bug that I would love to solve. Also, still haven't been able to configure my 857 to see my WD MyBook 3TB. Not seen in the 857 UI or in any version of SharePort. (sigh)
Thanks to all who have helped me get to this point, especially you, Furry.