Start ping then lose connection to box

i have an FBE200 that i am trying to setup for a communications project to our remote workers. I have reset the box to factory - and each time I try that, it reboots, I get ping on for 3 pings then i can no longer talk to the box.

any suggestions/ideas?

My dear friend

What is the status of the indicator light on the front panel of the fbe200 when it is unable to communicate with the fbe200?

have a good day