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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@Kevin_Z 4g keep disconnecting..
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Sorry, I'd missed your reply.
I've ordered a Huawei B818-263 4G Router, which will hopefully be more stable than the existing TP-Link router.
The TP-Link has always been unstable, and once it drops, it never 'recovers' back to 4G (as far as I'm aware).
If the Huawei has the same problem as the TP-Link, I'll try the TP-Link again sometime and pass on the information you asked for, but hopefully the new router (arriving tomorrow) will do the job properly.
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Hi，could you please provide your product information including model no., hardware and firmware version?
Besides, what troubleshooting have you done? and who is your ISP?
Please share with us a screenshot of Advanced->Status page and system log file when the problem happens next time.
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Hi, is your Deco X58-4G NZV version? If so, it is a customized model for Vodafone New Zealand, you mentioned that your ISP is One NZ but the mobile ISP on the X58-4G shows vodafone NZ, are they actually the same ISP?
You could try the following troubleshooting first, but if the problem still exists, it is recommanded to contact Vodafone to report the issue.
1. Based on the screenshot, it is working on band 28, if it changes a lot, you could follow this guide to select 4G band manaully:
How to select 4G band manually on Deco 4G Products
2. Please check and make sure the firmware version is the latest one.
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One NZ is vodafone NZ . Deco X58-4G NZV version .
Tried selecting B28 band manually for 3 hours and it just dropped out 10 minutes ago. Can go 5 days without dropouts and then have 4 in 6 hours.
There is only one 4g band where I live rural.
A manual band search reconnects the internet. Faster than rebooting or popping the sim.
Firmware updates says It's up to date.
Enable IGMP - yes
Firefox browser.
Have reported to ONE.NZ and they checked their logs - all good.
B818 was stable so it's not the ISP.
Seems simple to update firmware to search bands when connection lost. Couple lines of code eh?
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Why can't I upload the log file here? Error says "failed to upload". 13k txt file
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I bought NX510V 5g modem last week and it seems to have the same problem. I set it up last Friday and everything was fine until today. Today the connection was lost and the device did not re-connect. So the connection lasted about 4-5 days. This connection is used to monitor and control our home remotely so this is critical. I used Huawei B818 (4g) before and it did not have problems like this.
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@walzu
After no end of disconnects with this modem, I bought a 4G Huawei modem in November '22, to replace this 'problematic' TP Link modem. The Huawei has worked perfectly since then, while the TP-Link working was generally measured in hours. Looking at the age of this thread, and the continued failure of this modem, I'd suggest your best option is to return the TP-Link and go back to the Huawei?
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Your Deco X58-4G is an ISP-customized model, its firmware is customized according to ISP requirements, and we cannot modify it without permission from the ISP. It's recommended to contact your ISP to report your question/inquiry.
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