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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Hi, May I know if you bought this NX510V from local store or from your ISP? and who is your ISP please? actually NX510v is a customized model for ISPs as well.
If you are connected to 5G NR network by using NX510v with a 5G SIM card, it is different network from 4G actually, you may try contacting your ISP to see if there is any unstable 5G network issue on their end.
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Hi! This is bought from local store, so no ISP restrictions. I have 5G SIM that supports 5G/4G/3G. The connection was working great before yesterday (using 5G and 4G). I have waited now for about 24h and the connection is not recovering automatically. If there are any outages by ISP those are quickly over and connection should be available for the modem. I would not blame ISP for this. NX510v is up to date (no updates available).
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My ONE.NZ ISP tech, Mr. Amand, says it's the TP-LINK modem X58-4G and/or firmware causing the dropouts.
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You're the second X58-4G prior owner to tell me to switch from X58-4G to a different modem like the B818. I'm looking for a second hand Huawei 5G CPE PRO now that I can't get help from my ISP ONE.NZ nor TP-LINK.
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I'm using a Huawei B818-263 4G Router. I know it isn't 5G, but I've just run a speed-test, and I'm getting 95.6Mbs download (11:30am on a Thursday) which is fast enough for me.
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Yes the B818 was better, but i needed Wifi6 for VR. The X58 replaced 3 pieces of equipment. Too bad it doesn't work reliably. If I had the firmware I'd fix it myself.
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Have you tried tp-link modem in bridge mode (with router), any more stable? It is hard to understand why it is so difficult to fix software to: check connection -> if offline -> re-connect
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No I haven't. I just have the X58 now. This X58-4G bug is costing my ISP a lot of $. Technicians being sent out to ckeck cell towers even.
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Could you please look at the error log first. So far, no one has bothered commenting on it.
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ISP sent a new X58-4g but it was worse!? So I tested with a car battery and no drops for 12 hours. Attached a mains charger to the battery and got 1 drop in 12 hours. Switched to a better 12v wall adapter with line fitter and am getting a few drops around 11:00pm. Very much better! Thinking it’s EMI on AC power line. I’m going to buy a Hifi ac filter from Aliexpress but I don’t want to spend much. Any leads on EMI filtering appreciated. EMI filtering might explain why the B818 was working better here.
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