Activesyncy 2007, Isa 2006 and 0x85010014 error

When we migrated to x07, our Activesync started throwing the ol' 0x85010014 error. If you search for this online you will discover that it is one of the more common errors and there are about a dozen ways to fix it.

None of them worked. Everything was as it should be. I was completely flummoxed, until I stumbled across a post in a forum where someone said that he had solve the problem by changing the ISA "To" tab on the rule to cause the Request to come from the Original Client (see pic below). Tried that and voila, it worked!

Now I am not sure if there was not something else going on and I have not tried to change the rule back (my users get antsy if their phone stops synching), so take this with a grain of salt. Still, if you are pulling your hair out, try this: