Customer reset their password via:
Broadcom password policy requires 8 characters including upper case and lowercase letter, number and a special character.
Customer was using a non-English keyboard (Norwegian). Therefore, due to some suspicion about the characters entered, checked online for a Norwegian keyboard layout and chose a special character/symbol that looked interchangeable with an English keyboard. (a 'hyphen' or -) and asked the customer to set their password using the hyphen as the special character. Then enter their new password in Notepad following the Broadcom password policy and using the hyphen as the special character. Then copy and paste that password into the login window when logging in to support.nimsoft.com so we know for sure that it is as expected.
The login then worked as expected without any issues.
Note that in June when the customer reset their password via the forgot password url above, the process allowed it, and did not throw any error for using a Norwegian special character that it could not accept, or translate/handle or process properly. In this particular case using the Norwegian keyboard, it was the 'less than' key "<" that was used in the password. This can certainly occur again if any customer is using a non-English keyboard and creates a password using a special character that is not interchangeable/translatable with English keyboard characters and in general cannot be handled/processed.