Disconnected and can't recover until I pull out and reinsert the sim

Disconnected and can't recover until I pull out and reinsert the sim

Disconnected and can't recover until I pull out and reinsert the sim
Disconnected and can't recover until I pull out and reinsert the sim
Monday
Model: TL-MR6400  
Hardware Version: V7
Firmware Version: 1.1.0 0.9.1 v0001.0 Build 240402

Hi, since the recent few weeks, I've been experiencing internet disconnection very often. When it disconnects, the wifi icon is still on but just no internet access. If I pull out the sim card and reinsert, it will recover. Before this issue has started appearing, the router has been working quite fine. And even with this issue, whenever it is connected, the internet speed and quality is good. It just disconnects sometimes and can't recover by itself which is very annoying!!

Based on suggestions from chat gpt, I've tried to lock the internet band, add primary and secondary dns, lock to "4G only", lock profile but the issue still persists.

I've seen similar issues reported by other users, not sure whether there is a solution. 

 

Many thanks!

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#1
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4 Reply
Re:Disconnected and can't recover until I pull out and reinsert the sim
Tuesday

  @yy91 

Hi, may I know your SIM carrier?

Can you save a screenshot of the internet status on the MR6400 when the internet dropped out, such as:

By the way, how long have you had the MR6400?

If not pulling out/inserting the SIM card, will restarting  MR6400 help restore the connection?

 

Wait for your reply.

Best regards.

 

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#2
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Re:Disconnected and can't recover until I pull out and reinsert the sim
Tuesday

  @David-TP Thank you for you reply!

 

I have been using this router for 7 months and this issue only started to occur in the recent month. My carrier is Sunrise in Switzerland.

 

Just now it happened again(webpages not loading, meetings disconnected, but I receive whatsapp messages intermittently) and I tried to take this screenshot. I then tried to "reboot" from the management portal. However after that it still didn't recover fully - meaning I somehow received whatsapp messages, but webpage still didn't load. Then I re-inserted the sim card and now it's back to normal. I'm pasting the current status as well if it helps.

 

Previously I remember I power off and on the router and it also solved the problem. This was before I noticed re-inserting the sim card works.

 

After re-inserting sim card and it's back to normal:

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#3
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Re:Disconnected and can't recover until I pull out and reinsert the sim
Tuesday

  @David-TP Just to add, whenever this happens, I usually see dns resolve timeout and no other errors. 

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#4
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Re:Disconnected and can't recover until I pull out and reinsert the sim
Yesterday

  @yy91 

Hi, thank you very much for the update.

I'd like to follow up on your case via email and ask the senior engineer for further assistance.

Please check the email later for more suggestions.

Best regards.

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#5
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