TL-MR6400 v4 disconnecting each time an upload of more than 5mb is made

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TL-MR6400 v4 disconnecting each time an upload of more than 5mb is made

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
TL-MR6400 v4 disconnecting each time an upload of more than 5mb is made
TL-MR6400 v4 disconnecting each time an upload of more than 5mb is made
2022-03-24 15:58:56
Model: AC50  
Hardware Version: V4
Firmware Version: 1.7.0 0.9.1 v0001.0 Build 181214 Rel.49556n

Hi,

 

Each time I'm trying to upload, no matter the website or app, The connection is automatically lost and the router can even reboot itself.

 

Is there some parameter to change ? Something that can be done ? I've checked with the internet provider in France which says there is no problem with the line.

 

Regards

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#1
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Re:TL-MR6400 v4 disconnecting each time an upload of more than 5mb is made
2022-03-25 06:14:26 - last edited 2022-03-25 06:39:50

  @Jaaz888 

Hi, would the same issue happen to all the devices that are connected to MR6400?

By the way, may I know how long have you had the modem and when did this issue start?

Could you please help me record a small video clip of the whole uploading process and send it to me via private message?

thank you very much.

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#2
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Re:TL-MR6400 v4 disconnecting each time an upload of more than 5mb is made
2022-03-25 08:07:33

  @Jaaz888 

Thank you very much for the video.

I see there is a newer firmware version for MR6400 V4:

TL-MR6400(EU)_V4_190521

Please try to back up your current configuration under Advanced>system tools>backup&restore and update this firmware to see whether it could fix this issue.

 

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Re:TL-MR6400 v4 disconnecting each time an upload of more than 5mb is made
2022-03-30 06:47:09

  @David-TP 

 

I have the same router and am having the same issue. On other forums the reason given for this is Bloatbuffer. The router is not handling the data in a managed way and when uploading something it maxes out the upload portion and then latency spikes and the router crashes. How can TP-link bring out a router with this fatal flaw in a world that revolves around cloud services and uploading large quantities of data. Do you know for sure that upgrading the firmware as you have suggested fixed the Bloatbuffer issue?

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Re:TL-MR6400 v4 disconnecting each time an upload of more than 5mb is made
2022-03-30 14:30:42

  @ShaunDodds_tp-. 

 

Hi,

 

It's unfortunate and I had some email exchanges with assistant which did not resolve the problem, and I haven't heard from them since. Upgrading didn't change anything. It is not only uploading above a certain amount, but also downloading makes the router crash. When watching a live stream on Youtube in HD for example, the same problem will occur. Though less annoying, it is still a problem. But the upload treshold is really low, like around 6-7Mo will make the router reboot.

 

So I'm just working around it for the time being.

ShaunDodds_tp-. wrote

  @David-TP 

 

I have the same router and am having the same issue. On other forums the reason given for this is Bloatbuffer. The router is not handling the data in a managed way and when uploading something it maxes out the upload portion and then latency spikes and the router crashes. How can TP-link bring out a router with this fatal flaw in a world that revolves around cloud services and uploading large quantities of data. Do you know for sure that upgrading the firmware as you have suggested fixed the Bloatbuffer issue?

 

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#5
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Re:TL-MR6400 v4 disconnecting each time an upload of more than 5mb is made
2022-03-31 09:27:05

  @ShaunDodds_tp-. 

Is your model also TL-MR6400 V4?

 

Jaaz888

maybe you two could try to install the following beta which optimized the MTU size of the modem: 

https://static.tp-link.com/2020/202004/20200430/LTE_GATEWAYv3_1.10.0_0.9.1_up_boot(200427)_2020-04-28_08.22.19.zip  

Please let me know whether it is helpful or not.

Thank you very much.

 

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#6
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Re:TL-MR6400 v4 disconnecting each time an upload of more than 5mb is made
2022-03-31 16:59:53

  @David-TP 

Hi,

 

I believe this to be the firmware a colleague of yours sent me. I upgraded both directly from the device and from what was sent to me. Both to no avail. This is what I see on the management platform of the device : Firmware Version:1.10.0 0.9.1 v0001.0 Build 190521 Rel.38696n / Hardware Version:TL-MR6400 v4 00000001.

 

Regards

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#7
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