I have the same Rain problem for months now. If fact I have an open ticket with Orbit since early spring when i started my system up for the year. It worked great last year in identifying when we were to get rain but this year it has not indentified that we were to get rain once. The auto feature work great when it has rained the first year but that is it.
Orbit did contact me for the MAC Address of my Box and came back and said that everything looks fine, which doenst help me if it doesnt work!!!
I bought this for the sutomatic feathres and it appears that I only got iot for one year!!