The USB powered was not only for that but to charge its battery. CNET only has a few at https://www.cnet.com/topics/networking/best-networking-devices/hot-spot/
But this can vary with country.
DHCP is a given, the auto power on is something I have yet to find someone to ask so there's that. Reliable is only as good as the cell network. I've had business folk get upset at some carriers. Sprint here was pretty bad with then dropping connections every hour. Don't bother asking them about it as they don't educate the techs. And if you happen to find a tech that will talk, it's off the record.
So look over the top 20 at https://www.amazon.com/Best-Sellers-Cell-Phones-Accessories-Mobile-Broadband-Hotspots/zgbs/wireless/2407752011 and ask the seller if it has that power on feature.
Why not a cell phone hotspot as you can program (I mean exactly that, you write code!) it to do the power on/off thing.
I'm looking for a mobile router with these following features:
- LTE compatible;
- USB powered;
- DHCP server;
- Auto "power-on" capability (when powered);
- Rugged (if available).
Any suggestions for me ?
Thank you !