Currently the FSI works fine under OS-X and Linux.

Under Windows there are always a lot of troubles, sometimes it does not 
work with no apparent reason, or it is blocked by firewalls, vpn clients etc.

As far as I can see, the used JLAN solution is providing a embedded SMB server
which is accesses via network. And all the SMB traffic is very likely to be 
blocked by firewalls and other stuff.


Another way to solve these problems will be to use some other way to intergrate
the wuala filesystem in windows.

Actually I know of the following ways:

- Integrate it as a USB Disks, this will not work, since Wuala is not a Raw Disk
  where windows does handle the filesystem by itself.
  
- Write a installable filesystem driver for Windows. In that way there would be
  no SMB traffic and also namelookups etc. will no longer be a problem.
  
  A example of such a driver is http://www.fs-driver.org/index.html which
  allows you to access Ext2/Ext3 filesystems under windows.
  The drawback is, that this is a driver which must be installed on the system,
  probably this won't work without administrator privileges.
  
Here is a list of some more options: 

http://en.wikipedia.org/wiki/Installable_File_System
or the FUSE way
http://fuse4win.4host.ru/


Of course this is a radical change for the windows version and also requires
a lot of work.
But regarding the number of problems it actually give it might be worth to
look at alternative solutions for windows.

MiniTux