We recently attempted to get 3 Brightsign XT244s that need to be locally networked for access to a pi and presentation publishing, but not on the internet. We were unable to get them to work without an internet connection. In the logs we could see them reaching out to the internet for time (which we were able to remove), but there was also an attempt to reach out to Brightsign, which we couldn't remove.
We can't tell if not being able to reach out is what caused them to not work. If so, is there a way around this or not?
Basically we need them to work whether the internet is up or down.
Thanks in advance for any help.