Best router to do the following?

[Stinkpickle]

Hello all,

I am trying to spec out a router that will do the following, I have come across a few that will, but I would like to see what the masses have to say.

I need the following,

I'd like to keep stock firmware if possible, I want to avoid the labor time and any hiccups.

I'd like to be able to plug in a Verizon 4g USB into the router to use as a modem.

I need the router to be a able to use a DynamicDNS service, as well as be able to act as a VPN server.

Most of important of all, I need it to just work. These things will be plugged in at client sites, they need to be able to come back from a power outage and be able to stay on 24/7 without any issues.


If you guys have any suggestions as to the best router for my needs is, I would love to hear them!

Thanks!