You don't need Netview and modem for anything.
See this thread:
I've sent this (or versions of it) to a few customers now. I'm bringing it here for your reference. On the Triumph-LS: Make sure that you have the latest versions of software installed. Make sure that GPS, Glonass, Galileo and Beidou are turned on. Go to Setup and Edit the General Group...support.javad.com