That's what I didn't understand, or perhaps I misread, when the poster bxb11 stated:
"Just turned on my Vizio E601-A3 WAN 41 and it went into setup mode. After going through the setup procedure and restoring the CNET settings, I..."
My question then became, why did his set revert back to the default or setup mode requiring him to start his setup from the beginning, including restoration of his settings? This is the part I didn't understand and whether this is an isolated aberration, or the fate that eventually will befall the rest of us if, and when, our "software version 2.0.21" is automatically updated by Vizio.
Has this happened to anyone else (so far)?
Anyway, my WAN50, latest Firmware Version 1.1.5, has performed flawlessly since installation on December 29 and an event such as the one described by the poster would represent a minor setback if something like this were to occur requiring me to go through the setup and settings procedure all over again.