drumster34,
Were the two systems networked together and working prior to the PRI going down? If so the only reason that you would need to add and IP Connection would be if the database was corrupted or not backed up properly before it reset.
Remember that the IP Connections have to be Unique and by default they all start as P6000 and P6001. As a good practice it is best to change them so that Node 1 is P6001 and its secondary Card is P6111. Then Node 2 would be P6002 and P6222. That ensures that you won't get conflicts associated with them not having unique IDs.
Thanks,
TE