Dropdown choice that requires login

[famewolf]

I've got several choices I've added to the dropdown that give me a blank page because the "choice" requires me to login as a user/password but no login "box" appears.

Examples:
Router Status - http://192.168.3.1
QNAP TS-212 - http://192.168.3.119
RM Bridge - http://192.168.3.1/user/rmbridge/index.html

Screenshots available at https://imgur.com/a/BXOjI