Hughes HN9200 password

If you have the HN9200 in isolation, with no cables, no outdoor transmit/receive module and no antenna, then the ethernet port will look like a web site, accessible at https://192.168.0.1
Access it using a PC and you will see web pages.  Examine the modem status and configuration.

If you have the HN9200 in operation, with antenna etc and paid-for service with a service provider then modem will have an active gateway IP address and subnet mask peculiar to your site. Contact the service provider to find out the details.  The subnet mask may permit a several IP addresses for you to expand out locally using a passive hub or switch.  Most sites make use of just one gateway IP address and use an locally purchased LAN router to allow as many local PCs as you wish.

In either case, stand alone or fully connected via satellite, you don't need a password.
Read more here: https://www.montanasatellite.com/manuals/HN9200_Installation_1038622-0001_b.pdf  (7 Mbytes file)

I wonder why you don't use the lower cost option of a cable modem or ADSL modem, if you want to experiment with internet gateway access.  If you just want a router port to play with, get a cheap router and pick one of the local ports and pretend that is your access to the internet.

Best regards, Eric.