Adding Friends on our Child Domains

We have Openfire installed at both of our locations. They are about 10 miles apart, We are connected through an MPLS connection.

We can not add users between the 2 servers. Our first server is serverdc1 at Hollsopple and our other location is serverdc2 at Johnstown

From Hollsopple I have tried adding contacts like user@serverdc2.johnstown.domain.com user@domain.com all different things and none of them make it through.

Seperatly they are working fine and everyone can communicate within each location but i am getting alot of pressure to get this working between the 2. Any help would be sooo appreciated