How To Set Up A TP-Link 4G/LTE Router As A Backup Internet Router (Wireless Router Mode)
If you’re looking for a (relatively) straightforward way to achieve backup internet connectivity in your home of office, then you can use a TP-Link cellular router and run it in wireless router mode.
Using this mode (note: it’s not the standard setting), you can connect your current ISP router into the WAN port of the device. The ISP connection will be your backup connectivity. And the router will manage the 4G/cellular connection as a backup to the main line (note: you’ll need to change one more setting to configure the backup function in this manner). In the event that the primary connection goes down, the router will failover to the backup line and then return it once the interruption has resumed.
I looked at various ways for achieving backup ISP/cellular connectivity including looking at dual WAN routers and load balancing routers. Ultimately simply using the WAN port on the TP-Link device proved to be the simplest and most cost effective of the solutions that involved deploying the least hardware. This is a great solution for me for the moment and if I want to do something more elaborate (e.g. dual ISP + cellular) I have most of the hardware to make that happen.
After setting the basic networking up, I rigged up an ethernet switch to the LAN port on the device and now have an ethernet and WiFi network running that have backup connectivity built into them.
The summary of settings changes that I made and went through in this video:
1: Changing the TP Link MR100 router mode from 3G/4G router to wireless router.
2: Applying the 3G/4G backup section so that the router knew to use the cellular connectivity as the backup and not primary connection source.
3: Assigning a new IP address to the router’s embedded web server (EWS) to prevent conflicts between the one belonging to the ISP router.
By: Daniel Rosehill (danielrosehill.com):
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== Affiliate links to product(s) mentioned ===
TP-Link TL-MR100 300Mb Wireless N 4G LTE WiFi Router with SIM Slot
https://amzn.to/3BHlMib
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4g lte
Trying to decide on the approach for my personal network, and I pretty much got to what you've shown (the simpler version).
Difference is that I've got ISP router => Archer AX73 (which gives me main WLAN + a guest network) => 2x Switches => LAN devices
I was wondering if I can do ISP => MR100 (have it pass internet through either ISP or 4G) => AX73 which is still used as the main router for everything else => 2x Switches => LAN
Would you recommend some other device to have the flow I'm aiming for?
Hi, I liked the video, just really did not get the point in doing this. In my case, I have exactly the first setup, two ISP providers, one DSL, one cellular, TP router to balance them on WAN ports, TP-link connects to local network which has its own Wifi. Are you trying to minimize the amount of devices?
Hi. I'm not a tech guy but having Internet issues with phone line Internet provider at work. This router is connected to a network and when it stopped working, I tried to connect my tplink router from home in its place until technician comes out but its not working for me. If I just connect my tplink router to Vodafone router should I be in a better position?
Will doing this slow down the incoming internet feed as from what I can see you are feeding the isp routers output into a 100mbps port on the tp link mr then back out at I presume 100mbps?
Does this support failback? When the primary isp goes up it will make the connection again instead of 3g/4g?
Hi, thank you for sharing this. I currently looking for failover solution exactly like this. 1 question though, does your current setup able to gives notifications when failover to 4g happens?
what if you are using mobile hotspot as backup ? will it work as backup in case ISP is offline ?
Hello ! Thank you for your video. I needed a 4G backup connection and it's good that you show the interface of the router , so I bought a tl mr 150. One suggestion. I set dual detection (ping+DNS) and the switch time from one connection to another is only 5 seconds. You should try it
Hello ! Thank you for your video. I needed a 4G backup connection and it's good that you show the interface of the router , so I bought a tl mr 150. One suggestion. I set dual detection (ping+DNS) and the switch time from one connection to another is only 5 seconds. You should try it
hello can i use 2 of 4g/LTE router as an wan1 and wan2 connect to load balance router(Omada vpn gigabit) to make both 4g as failover
With your setup, I noticed you have DHCP on the tplink turned on, does this cause issue with the DHCP turned on also on the ISP router? I'm worried about the back up coming on but the DHCP causing issue back down the line back to the ISP router
Nice