Who I have the same questioned this topic

My extender will not go beyond step 8a! It has not been working for months, actually. I have done factory reset but did not work. 

I have logged into the IP and the operation status is Not-In-Service. Location is found and software is 4.0.2.01

Under startup progress, it says No.4 Attempt to reach initial gateway --> and the status is Failed to reach Initial Gateway 141.207.249.235 IKE Failure.

IPSec has a status of both Reachable and Not Connected (port is 4500)

Active Alarms

No.1 SYS IPSEC DOWN --> The 4G LTE Network Extender has lost connectivity with IPsec Server and is not in service. 

Can anyone please, for the love of god, help me?? Verizon just puts me on hold, it's horrible. This is on a business account if that matters. Previously was residential and worked fine. Maybe something with the switch messed it up? I have Armstrong cable in Cabot, PA and I'm using a D-link router DIR-882. Please help if you can.