All of a sudden it started to happen on some notebooks :
If not in home network (iPrint server accessible) Word takes ages to open.
It opens immediately if we stop print spooler or delete all iPrint printers.
It works normal if notebook is in home network.

iPrint client 6.06 (tried 6.09. it's the same) on windows 7, OES 2015 fully patched iPrint. Issue started between two installs of updates, so they were not an issue.

Any idea - or at least a workaround ?