Spectrum error "SPC-OCC-11528: Missing device username" when trying to run an NCM capture
This means that you need in NCM to add the username and password.
This is done at the local device level under:
Information tab> Network Configuration Manager > Local Communication Configuration
Setting the user name here should also populate the attribute:
At the device family this is done under:
Select device family > Contents pane > information tab > Device Configuration Transfer Settings