XigmaNAS

I have tried upgrading from 10.1 to 10.2 a couple of times [different 10.2 builds] and in each case my working CIFS/SMB shares break. This is connecting from Win 10 x64 release, using only local SAM credentials [not pin or microsoft live account]. The error is: The password is invalid, followed by System error 5 has occurred then Access is denied. This is connecting to a local user account on NAS4Free and I reconfirmed the password as correct - if I downgrade to 10.1 the connection starts working again.

In Services | CIFS/SMB | Settings | Auxiliare parameters I have the following: client signing = mandatory, restrict anonymous = 1 [for improved security]. These work fine in 10.1. From the Win 10 topic in this thread I tried adding 'smb port = 445' but that did not seem to make any difference. I suspect something has changed in the Samba configuration for 10.2. Have others seen Samba issues like this between 10.1 and 10.2? Thanks

The problem appears to be a username consisting of all digits e.g. 123456. In 10.1 it works fine, in 10.2 it fails, because no user entry is created in /etc/master.passwd. A username consisting of alpha characters e.g. jackstraw works fine and shows up in /etc/master.passwd. I suspect this is a bug with the web interface and/or backend used for user account creation.

This is not NAS4Free change. It's FreeBSD's change since 10.2.
Yes, you cannot use numeric string in 10.2 series and later version like 10.3, 11.0 etc.