Do you have a Wi-Fi router that automatically switches between WAN and 4G?

Question

network hardware

Good afternoon. The office has rather unstable internet. A backup channel is required. There is no other provider, so it was decided to use 4G. Please advise a router with the ability to automatically switch when wan falls to 4G. And in the opposite direction when wan is understood. Is it possible to implement this with standard firmware or only with alternative ones? It is very desirable that the router does not have a usb connector for a modem, but a connector for a SIM card. So far I have found only the TP-Link line, but I don’t know if they have automatic switching.
PS I know that similar questions have already been asked here, everyone is older than 3+ years and slightly lost their relevance.

Answer 1

The classic answer is Mikrotik.
However, they have LTE with a sim card - only wifi access points have it. All other routers have a USB connector.
Also, routers are difficult to configure for an unprepared person.

Answer 2

Rostelecom Sagem can. I rented from them in 2011. It still works.
I think anyone is capable of using 3G as a backup channel.
Look for the interface of the router you are interested in. It will be clear there.

Answer 3

And what is the reason for the desire not to use a usb-whistle? With it, the pieces of iron are, firstly, more common, and secondly, the choice of whistles (to which you probably want to connect an external antenna) is quite wide.
And yes, a moment: it’s not at all a fact that the loss of the Internet will lead to a drop in the WAN ... therefore, more intelligent monitoring suggests itself. For example, the availability of 8.8.8.8
This somewhat reduces the range of equipment ...
Offhand - microtics and routers from the home segment, where you can put custom firmware on Linux-like kernels and write your own scripts.

Answer 4

Asus BRT-AC828
ASUS BRT-AC828 / AC2600 Dual-WAN WIFI Router 3G/4G Failover and Captive Portal
video with proper admin tab

Answer 5

Kinetics can in channel reservation

Answer 6

There are ready-made solutions for reserving wired Internet, as well as a double reserve for the radio channel itself (2 SIM cards). There are many things you can do on Mikrotik.
Here are examples of ready-made cases: symbiosis . The kit already comes with sim-cards with unlimited 4G Internet OTK.