Please check below points -
1. Your CSV has field name NTNAME & your script has only NAME - use NTNAME only. You can use script as
FROM [E:\QlikView\Datasources\Section Access\QV User Access.csv]
(txt, codepage is 1252, embedded labels, delimiter is ',', msq);
2. Also make sure of correct (no spelling mistakes/extra spaces/ forward/backward slash etc) domain name & username in Section Access file.
3. In Document Settings -> Opening Tab -> Tick ✓ to 'Initial data reduction based on Section Access' & 'Strict exclusion' below it.
4. Reload & save your application. Copy application on server again & then check on access point.
5. Also make sure about assignment of CALs
Hope this will be helpful for you.
Prashant P Baste