When crossing into the wild server you want to cross into the land of the kingdom you want to be in. If you cross over at the south part of the home server, you will end up in the HOTS kingdom. If you cross over at the north part of the home server you will enter JK. MR is generally located on west side of the wild server so you will need to travel across the map to get to it.
==Crossing to Jenn-Kellon Home From Wild server==
Pretty much the exact same as crossing from home to wild but this time travel '''East'''.