Troubleshooting LTE keeps disconnecting
This Article Applies to:
All 4G LTE Routers
Issue Description/Phenomenon:
Some customers might experience interruptions or disconnections with their 4G LTE routers, their phones or laptops can connect to the router wireless network fine, while they display a 'No internet' error, and customers cannot access the internet. This article aims to provide suggestions on the issue.
Troubleshooting Suggestions:
1. When it loses the internet access, please check if you can still login to the router web GUI, then show us the Internet Status, SIM Card Status as follows. Compare the Network Type and Band, if they are the same as those when the internet is working fine:
2. If the band was changing to a different one when the internet interrupts, please follow the guide below to manually select a band that works in your network
How to select 4G band manually on the web interface of LTE Gateway Routers
If your LTE router doesn't support manual band selection, you could get the beta firmware from this thread:
https://community.tp-link.com/en/home/forum/topic/241534
3. If the problem still exists, please insert the same SIM into another LTE device or even a smartphone, then monitor for some time to confirm if the internet works fine and is stable.
4. If the 4G signal in your area is strong and stable, please try to change the Network Type on Advanced->Network->Internet page from 4G Preferred to 4G Only to see if it would be more stable.
If the issue is not located or resolved, please comment below on this topic and be sure to provide the following information:
- Model no. , hardware, and firmware version of your TP-Link device
- Working mode of the router, like 3G/4G router mode or wireless router mode
- Where are you based, and who is your SIM card carrier?
- Screenshots of Advanced->Status page and Advanced->Network->Internet page when the internet works fine and also when the internet stops
- System Log file without rebooting the router
- How often does the problem happen, and how does it recover?
- When did you purchase the router, and when did the issue start to happen?
- Is the same SIM card working fine and stable on other 4G devices?
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I solved my X58-4g disconnects by using a cooling fan.
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Hello !
About a month and a half ago I bought a NX510V router from a local retailer.
I live in Romania, and I am using it on the Orange network with an unlimited voice and data plan.
The router is not ISP-customized or network-locked or anything like that.
Unfortunately, I'm also confronted with the internet disconnecting problem.
In my case the problem manifests by losing internet access only for the data traffic.
I also use an analog phone attached to the RJ11 plug, and this works flawlessly.
I have no 3G coverage at the location, and the router doesn't seem to be compatible with 2G networks.
So the voice connection must be made through 4G, band 20 to be precise, which is the only one available.
I conclude from this that the router does not lose the 4G connection to the Orange network but instead simply disconnects the data side for some reason.
The Wifi connection between the router and devices is stable, and I can access the router interface with no issues.
To mitigate the problem, I tried the following:
- Use alternate DNS servers (Google, CloudFlare);
- Use a surge-protected and isolated power socket (APC Essential SurgeArrest PME5U2B-GR).
- Switch between different connection modes (5G/4G/3G, 4G/3G, 4G only, etc.);
- Manually select and lock on 4G band 20;
- Schedule daily reboot;
Nothing works!
To regain internet access I have to reboot the router. Sometimes it takes one try, other times it takes two or three tries.
After the reboot, the data connection is lost at random. Sometimes within a minute or two, sometimes after a few hours.
Other details:
- I use the NX510V in a mesh network with a TP-Link C64 (wireless backhaul);
- When the internet goes down, the green LED on the router turns OFF;
- Before I got this router I used a Huawei E5186, which gave me no problems at all. I only replaced it because the NV510 offers VoLTE and EasyMesh.
- For some reason the download speed is equal between these routers, but the upload speed on the NV510 is half of that on the Huawei;
- I use 2x16 Db MIMO external antennas witch are activated in settings.
On the day I first installed it, it worked flawlessly.
I really need a solution for this expensive problem (except the trash bin).
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Hi, welcome to our community.
You may refer to some explanations and troubleshooting steps below：
1. NX510v is a Server Provider model, regardless where you purchased it. For our common models like Archer Nx200 or Archer NX600, they can be configured and managed by Tether app, but for the customized models, they can only be setup and managed by Aginet app. (except web UI)
2. When the internet drops on NX510v, how about the LED status on it? Please refer to P5 in the User Guide and share us the picture to show the LEDs on the router. If it is dynamically changing, please kindly share the video.
3. Please check whether your current sim card support 5G.
4. Please put the sim card in a phone or another LTE/5G router to observe the internet stability. On your phone using the sim card, does your phone work on 5G? And which band does it work on?
5. Please change another sim card in NX510v to confirm.
6.You may remove Archer C6 to exclude any possible cause from another device.
Thanks for your cooperation and best regards.
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Thank you for the reply,
I will do all you recommended.
The location where I have this router is somewhat remote and I go there about once a month.
So it will take a while.
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