You need to be aware of the following

1. Server install may have been set to inches. Check and change to mm in File Options [F10]
2. Printer queues... may need to set up multiple print queues with different defaults and use SetPrinter script step to select.
3. Server needs to have firewall permissions set for HTTP and/or HTTPs (if secure site)
   
   
4. Using the spooler from client
   
   
5. Setting for spool file for server to pick up (note 8 character names).
   
   Registry Editor