WiFi-Router network connection using SIM card

Question

I know there are routers which support SIM cards. But can I connect a router which does not officially support SIM cards to the internet using mobile connection?

I imagine some tool which can send the mobile data through a LAN cable. Or is there a USB SIM-card standard, which works with routers?

The router I'm trying to connect to the internet through mobile data is the Archer C9 from TP-Link. Does it support USB adapters? I did not find this information on the internet.

Solution

It is possible in general but may be tough with Archer C9.

Get alternative firmware to your router. OpenWrt supports Archer C9 with serious limitations unfortunately (BCM4360 not usable at all!). With other, full supported router you should get USB dongle (modem) that will work with your SIM card and OpenWrt, then follow this.

I have experience with OpenWrt only, not DD-WRT nor Tomato, so i used OpenWRT as example. You need to do research to establish router-firmware-modem set that will work together.

Comments

[Benni]

Well then... I think of some tool which can handle SIM cards and "outputs" it to a LAN cable... basically a second router, but much smaller and without features. Is this possible?

[Benni]

Well, I was rather gonna build it without a computer and a smartphone, just using the router and maybe some adapter. But thank you for your detailed answer anyways, perhaps I or someone else is going to be able to use it :)

[Benni]

So, the support of these USB dongles is not a hardware but a software limitation?

[Daniel K]

It would be great if you could clarify how this router will help. Does it take a SIM on-board? Does it take a USB dongle? Does it connect to the Archer router using a LAN cable?