June 14, 2018, 06:53:12 pm
Welcome, E.
Kudos for providing all the information we need.

The 'hosts' file is fine and 'LOGINFAILED' means that your internet browser does have access to the license server.
In other words, there's something else that's preventing Lumion from accessing the license server during start-up.
That "something" is usually security software (anti-virus and/or firewall software).
Does it work if you temporarily turn on
Windows Defender and then temporarily turn off your 3rd party firewall/anti-virus software before running Lumion?
If not, what's the name of your anti-virus software and your firewall software?
DISCLAIMER:
We cannot be held responsible or liable if the instructions above result in damage to your computers/software/network.P.S. I'd recommend applying for the
Lumion 8 Pro Trial version as it includes the latest features:
Knowledge Base article: Is there a Trial version of Lumion?