Interesting but no support I know would support that. Good luck with finding support on something like this.
Maybe you will find more replies about this as you ask in more forums but for now my answer is to pick out interface and use it.
My home network is about 50 / 50 wired to wireless and both systems seem to be operating fine. However, I have a problem with my main desktop. This, for reasons that are probably flawed but made sense to me at the time, is connected to both LAN and Wifi.
When I boot the PC normally it finds both network connections and connects to them both automatically, but then in the Network and Sharing window and system tray it reports that the wireless network doesn't have internet access but the wired does.
What I've now discovered is that if I disable the LAN adaptor, the wifi suddenly gets Internet access and then when I enable it again they BOTH have access!!
It doesn't make any sense to me but I am hoping someone out there has some idea what might be happening.
It didn't really cause me any problems tho until recently when we found that my wife's laptop was struggling to connect to the internet thru wifi until I disabled the LAN adaptor on the main PC......??????