Originally Posted by
mooper
Indeed I use my 4G LTE Verizon mobile hotspot distributed via "WiFi as WAN" via a Cradlepoint router as my connection (unlimited data grandfathered), so I doubt they'd be willing to provision a public IP for me, but that's a great idea worth trying.
Let's back up a few steps and not assume public IP address is the problem.
What address do you enter to connect to your home network over the Internet? Are you using IP address or dynamic host name?