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QoS and Massive amounts of Bufferbloat when QoS is enabled on 1.4.2 AX3000 Pro

QoS and Massive amounts of Bufferbloat when QoS is enabled on 1.4.2 AX3000 Pro

QoS and Massive amounts of Bufferbloat when QoS is enabled on 1.4.2 AX3000 Pro
QoS and Massive amounts of Bufferbloat when QoS is enabled on 1.4.2 AX3000 Pro
2 weeks ago - last edited a week ago
Tags: #Firmware Update #Bandwidth Control/QoS
Model: Archer AX3000  
Hardware Version: V1
Firmware Version: 1.4.2 Build 20250813 rel.52800(5553)

I have the Ax3000 Pro model.

 

After updating firmware, ran some bufferbloat tests with QoS on and off.  Noticed QoS is broken on this latest firmware.

 

Please refer to pic with bufferbloat testing.

 

Upload Active with QoS on is 271 ms

Upload Active with QoS off is 28 ms

Upload Active with QoS on  Previous firmware was 0-3 ms

 

I do not have a pic with previous firmware :(.

 

I cannot flash back to previous firmware....

 

Any beta firmware available?

 

 

File:
Bufferbloat.jpgDownload
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#1
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1 Accepted Solution
Re:QoS and Massive amounts of Bufferbloat when QoS is enabled on 1.4.2 AX3000 Pro-Solution
a week ago - last edited a week ago

Thanks to @David78907 for sharing.

 

Yes, we have released beta firmware for some Archer routers. Please click to learn more about it: What Can I Do If QoS Enabled Causes BufferBloat and High Latency on My Router After Firmware Update?

 

 @LGrizL, please confirm whether your router model is on the list and whether the beta firmware can help.

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: △Pre-release Firmware for Archer AX50 Introduces New Parental Control Features and Enhancements △Introducing AI QoS: Elevate Your Gaming Experience on the Archer GE800 Gaming Router △Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN △Tether KidShield Test Recruitment - Safeguarding Children's Online Experience If you found the post or response helpful, please click Helpful. If an answer solves your problem, click "Recommended Solution" so that others can benefit from it.
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#6
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Re:QoS and Massive amounts of Bufferbloat when QoS is enabled on 1.4.2 AX3000 Pro
2 weeks ago

Hello @David78907 ,

Welcome to our community.


Currently, there is no available beta firmware. Can I know if not using QoS will have a significant impact on your network usage?

 

We have reported this anomaly to the relevant department and will continue to monitor feedback.

 

If possible, we would appreciate it if you could help us collect the following information to local support email:

 

Subject: [Forum Escalation][ID 849554] QoS and Massive amounts of Bufferbloat when QoS is enabled on 1.4.2 AX3000 Pro

Forum Nickname: David78907

Thread URL: https://community.tp-link.com/en/home/forum/topic/849554

Model&Version: Archer AX3000 Pro V1 1.4.2

Description: 

Any Other Relevant Information: Please attach the configuration file and system log on your router for further investigation.

How to view and save System Log of TP-Link wireless router

How to create and restore from a backup file on your TP-Link Router

 

Once sent, a ticket will be created in our support system, and a member of the team will follow up to gather more information or troubleshoot the case.

 

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: △Pre-release Firmware for Archer AX50 Introduces New Parental Control Features and Enhancements △Introducing AI QoS: Elevate Your Gaming Experience on the Archer GE800 Gaming Router △Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN △Tether KidShield Test Recruitment - Safeguarding Children's Online Experience If you found the post or response helpful, please click Helpful. If an answer solves your problem, click "Recommended Solution" so that others can benefit from it.
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#2
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Re:QoS and Massive amounts of Bufferbloat when QoS is enabled on 1.4.2 AX3000 Pro
2 weeks ago

  @Joseph-TP 

 

Thanks for looking into this as I am thinking about replacing this router and purchasing another brand due to lack of QC in checking released firmwares and making sure all features work the same. It looks like my isp gave me more speed. I am now 500 down and 25 up.  The tests on prior post I was 400 down and 10 up.

 

I will disable my windows tweaks to test.  I use this "netsh int tcp set global autotuninglevel=disabled" normally to get rid of my download bufferbloat but is has no effect on upload..

 

I will work on getting those logs over soon. 

 

Thank you for your time.

File:
QoS Off and On.jpgDownload
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#3
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Re:QoS and Massive amounts of Bufferbloat when QoS is enabled on 1.4.2 AX3000 Pro
2 weeks ago

  @David78907 have exactly the same issue. Engineering looking into it apparently but will likely look at another brand if this can't be fixed. Can't roll back firmware after the last update either. So poor.

 

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#4
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Re:QoS and Massive amounts of Bufferbloat when QoS is enabled on 1.4.2 AX3000 Pro
a week ago - last edited a week ago

Looks like this beta fixed it!

 

--Beta firmware--

https://static.tp-link.com/upload/beta/2025/202512/20251202/AX55ProV1-up-us-ver1-4-3-P1%5B20251202-rel11825%5D-2048_beta.zip

 

Thank you!!!!!!!!! I'm glad i didn't need a new router.

 

A+ in bufferbloat! It is working better than on old firmware.

 

 

File:
unnamed.jpgDownload
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#5
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Re:QoS and Massive amounts of Bufferbloat when QoS is enabled on 1.4.2 AX3000 Pro-Solution
a week ago - last edited a week ago

Thanks to @David78907 for sharing.

 

Yes, we have released beta firmware for some Archer routers. Please click to learn more about it: What Can I Do If QoS Enabled Causes BufferBloat and High Latency on My Router After Firmware Update?

 

 @LGrizL, please confirm whether your router model is on the list and whether the beta firmware can help.

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: △Pre-release Firmware for Archer AX50 Introduces New Parental Control Features and Enhancements △Introducing AI QoS: Elevate Your Gaming Experience on the Archer GE800 Gaming Router △Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN △Tether KidShield Test Recruitment - Safeguarding Children's Online Experience If you found the post or response helpful, please click Helpful. If an answer solves your problem, click "Recommended Solution" so that others can benefit from it.
Recommended Solution
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#6
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Views: 261

Replies: 5

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