I'm trying to RNG abuse a Shiny Manaphy egg, from the first Ranger game, in D/P (abusing the egg PID in Diamond, and the matching TID/SID in Pearl). When I load Diamond up to the continue screen, the option to connect to Ranger shows up, but once I start the connection screen, the game doesn't connect to Ranger, and the connection screen in Ranger eventually times out. Would there be a reason as to why this is happening? I haven't received any Manaphy eggs from any of the Ranger games in my Diamond save yet, so it's not that.
Furthermore, once I get the thing to send, are there any Gen IV-V exclusive tutors that a Manaphy may want for shits and giggles?
Edit: Got the finicky little bugger to send the egg