Solution What Can I Do If QoS Enabled Causes BufferBloat and High Latency on My Router After Firmware Update?
This Article Applied to:
Archer BE230_V1/V1.20
Archer BE230_V2
Archer GE550_V1
Archer GE400_V1
Archer GE230_V1
Archer GXE75_V1
Archer AX53_V1
Archer AX55_V1
Archer AX55 Pro _V1
Archer AX72_V1
Archer AX72 Pro_V1
Phenomenon:
Some users have reported performance degradation in their routers after enabling QoS following a firmware update.
Specifically, Bufferbloat test scores for both wireless and wired clients have significantly decreased (e.g., from A/B to F). Serbian_Fantom mentioned this unexpected behavior here.
Additionally, a noticeable increase in upload latency may occur, resulting in higher latency and jitter when the network is under heavy load.
Disabling QoS can resolve the performance degradation described above.
We have identified the cause of these unexpected behaviors. Please take a look at the following feasible solutions.
Available Solutions:
Solution 1:
Our development team has provided the following beta firmware to address this unexpected behavior for the models that have already been reported. Please install the beta firmware for your router if you encounter this anomaly.
| Model | Direct Download Links |
| Archer BE230_V1/V1.20 | Archer BE230_V1/1.20_1.2.1 Build 20250821(Beta Firmware) |
| Archer BE230_V2 | Archer BE230_V2_1.1.3 Build 20260127 (Beta Firmware) |
| Archer AX55_V1 | Archer AX55_V1_1.5.11 Build 20260205(Beta Firmware) |
| Archer AX55 Pro_V1 | Archer AX55 Pro_V1_1.4.3 Build 20251202(Beta Firmware) |
| Archer AX72_V1 | Archer AX72_V1_1.4.1 Build 20250918(Beta Firmware) |
| Archer AX72 Pro_V1 | Archer AX72 Pro_V1_1.4.1 Build 20250918(Beta Firmware) |
| Archer GXE75_V1 | Archer GXE75_V1_1.1.1 Build 20251024(Beta Firmware) |
| Archer AX53_V1 | Archer AX53_V1_1.5.4 Build 20251230(Beta Firmware) |
| Archer GE550_V1 | Archer GE550_V1_1.3.0 Build 20260328(Beta Firmware) |
| Archer GE400_V1 | Archer GE400_V1_1.1.2 Build 20260422(Beta Firmware) |
| Archer GE230_V1 | Archer GE230_V1_1.2.1 Build 20260428(Beta Firmware) |
Note:
- Please be sure you have read the Beta Test Agreement before upgrading the beta firmware!
- For the sake of insurance, it's always recommended to save a copy of the router's Backup Config file before upgrading or downgrading.
- You may follow the guide to upgrade the firmware of your router. How to Upgrade the Firmware on the TP-Link Wi-Fi Routers.
Solution 2:
If you don't want to try the beta firmware, you can temporarily disable the QoS feature.
We welcome you to share your experiences with the beta firmware. If the beta firmware doesn't help, please provide details on your router's current operation and any other relevant information. Like the complete network topology, specific exception details, when the problem started, etc.
What if your router model isn't among those mentioned above, but you've also experienced unexpected bufferbloat and high latency after enabling the QoS feature during firmware updates? Please provide your router model, including firmware and hardware versions, for reference: How to find the hardware and firmware version of my TP-Link device?
Thank you for your feedback and support.
Update Logs:
Jan 29th,2026 added Archer BE230_V2 Beta Firmware
Feb 5th,2026 updated Archer AX55_V1 Beta Firmware
Apr 14th,2026 added Archer GE550_V1 Beta Firmware
Apr 28th,2026 added Archer GE400_V1/ Archer GE400_V1 Beta Firmware
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Hello @JPromano ,
We are still collecting user feedback on the GE550 Pre-release, and there is no clear announcement yet regarding when the Official firmware will be released. Please keep an eye on the official website for firmware releases.
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@Joseph-TP I would like to share a weird behavior in the GE550 v1 1.3.0(beta).
I checked that the RGB effects/features are being turned on automatically after the router reboot.
I don't know if the log will help, but I confirmed this issue after to repeat the test many times.
Thank you.
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@Joseph-TP same issue on be400
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Hello @JPromano ,
Do you mean you set the LED off, but it will turn on after the router reboots?
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@Joseph-TP Hi. Yes, I do.
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Hi @JPromano ,
We may also need to confirm whether this behavior is abnormal.
We would like to escalate your case to the support engineers, and they will follow up on it. If you are willing to conduct further analysis, please check your inbox and respond.
JPromano wrote
@Joseph-TP I would like to share a weird behavior in the GE550 v1 1.3.0(beta).
I checked that the RGB effects/features are being turned on automatically after the router reboot.
I don't know if the log will help, but I confirmed this issue after to repeat the test many times.
Thank you.
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My BE230 (v2.0) router isn't working as it should. The QoS setting not only fails to resolve bufferbloat but actually makes it worse. When I use my modem’s QoS feature, I get +25 and +15 ms in the bufferbloat test, but when I use TP-Link’s QoS feature, I get +70 and +1100 ms.
Are you working on a fix for this? Feedback regarding this issue has been submitted numerous times over the past year, but the problem has not been resolved in any way.
I tried version 1.3.1, and later version 1.1.7. Neither helped. Are you planning to fix this issue?
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@Joseph-TP thx !
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Hello @Sidon ,
May I know whether your router's firmware is 1.1.7 now? If so, you can try the Archer BE230_V2_1.1.3 Build 20260127 (Beta Firmware) and see if it helps.
Additionally, please test the actual speed and latency with QoS enabled and disabled, and share the test results, including screenshots.
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Hello @Joseph-TP
Yes, it's 1.1.7. I've tried 1.1.3 beta and it didn't help. Here's the results:
First screenshot: QoS disabled on BE230, enabled on modem
Second screenshot: 1.1.3 QoS disabled on BE230 and disabled on modem
Third screenshot: 1.1.3 QoS enabled on BE230 and disabled on modem
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