I found error "password/user is illegal" when i try to create backup to my nas. Acronis software(or windows)ask's only once user/password when i browse to find backup location on nas. I have full access to nas because I can create/delete files with win explorer. It seems that TI uses current windows login user/password to connect to nas, not that one that acronis(windows) ask when browsing backup location And not if I use mapped network drive with different user/password. When i logged correct user/password everything seems to work fine. The best solution to correct that user/password problem is that acronis add user/password input form to backup(and restore),so in every backup I can say what password is used.