Hi,
You posted about the flashing in another thread. We responded but have not heard back from you.
It is not trying to connect to your gateway, it actually cannot confirm it so keeps flashing.
Check your post please so we can figure out what can be done.
https://support.isptracker.com/topic/378/not-getting-gateway/
The earlier display device you purchased was discontinued because it was a very early version and we've since been building completely different devices.