After several tests:
Installing the hack for MST ftp access is ok after first boot, but with second boot I have no more ftp access

Because of your posting in this thread I tried the NON-MST version.
After first boot ftp access is ok, but with second boot the ftp access is gone once more.
I uninstalled this widget and installed the MST version.
And as expected: first time boot ok, second boot no.
A new installation without switching to non-mst version previously as described has no success.
Do you have any hints for that behaviour?
TIA