I am trying to set up a Net Folder on OES in Filr 3.2 small deployment
(test system for our large deployment production system) with around
17,000 directories at the top level. After creation and with JITS only
the Net Folder shows up empty. Another one with about 8,000 directories
works just fine.

It finally worked with the big folder also after adjusting the maximum
wait time in the Net Folder Global Settings to 40 seconds.

So I am interested in any opionion or experience regarding the practical
limit for the number of entries in a directory together with JITS or
with scheduled synchronization. I do not want my users to wait for too
long time. 40s is quite a while. Might disabling the use of directory
rights in the global Net Folder settings help to speed up things?