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?
Hello,
I have this disconnecting issue once or twice a day for a year now with MR 600 which I changed for MR 6400 V5 EU but still the same disconnecting issue. I also tried with my M7200 mifi router which also got disconnecte.
The only solution is a reboot. It seems to happen when internet is being used more intensely (streaming, video call, download...).
It seems to be coming from my SIM card carrier (Free Mobile, France). Manual band selection does not change anything.
The only thing that changes between connected and disconnected LTE is the change of IP address (see print screens below)
Do you have any advice on how to fix this issue without having to manually reboot the router every time?
Thanks!
@Kevin_Z The router disconnects all devices.
I'm seeing "No Internet Access" after few seconds router terminates the connection with all device.
I have to connect the router manually again.
Sometimes I don't see "No Internet Access" but my all device is disconnected from router.
I'm locked at band 1 and set LTE only seems the problem with router logic.
