I've been getting that same message periodically for the past week, mostly right in the middle of my taking a shot. Then it either continues to the next screen when I click retry showing I made the shot or goes to the wgt error try again screen and I have to go out and come back in.
My internet hasn't at any point lost connection or fluctuated. A lot of the times I am on skype with friends when it happens and I haven't lost my connection in it when this occurs. So I am wondering if it isn't the wgt servers disconnecting us. I have no explanation for it other than that.