I just installed the new Windows update, and it fixed my long lasting connection problem with the Librarian !
I am not sure if it was needed; but - after installing the Windows update - I have done this:
1, Uninstalled Librarian and 1.04, 1.06 updater
2, Reinstalled RNDIS driver
3, Restarted my PC
4, Reinstalled 1.06 updater and upgraded Wavestate to 1.06 succesfully
5, Reinstalled Librarian and it is now connecting as it should

Best regards,
Janos