Hi -
The 403 forbidden error indicates a problem with the username or password.
When you say administrator account you are referring to the Snap Creator user that you define during setup, correct?
Assuming you are using the Snap Creator user, does your password contain any special characters?
I have seen this error occur before if a special character is used.
Try first running:
snapcreator --credentials
This will prompt you for server, port, user, and password and cache these credentials.
Then try running your Snap Creator command without server, port, user, and password and see if it works.
Please let us know the result.
Thanks,
John