We have 5 remote offices. 2 are in their own Tree.

How can I add the printers from these 2 offices in a separate Tree to my
iPrint list?
The 3 offices that are in the same Tree as HQ, no problem.
The offices are NW6SP5, HQ is NW65SP3.

Also when I try to add print drivers to the Brokers in the remote offices, I
am getting a message "SSL connection has been closed".
I select the driver and it starts to copy it and then I get the message.