Hey Everyone,

 

We received feedback from the community that after updating their Archer AX55 V1 to firmware 1.3.5 or 1.4.1, noticeable latency or buffer bloat may occur when the QoS feature is enabled.

 

This was initially reported by Zuiko in this thread.

 

Our development team has identified the cause and recommends the following solutions.

 

Applies to: 

Archer AX55_V1_1.3.5 Build 20241211/1.4.1 Build 20250821

 

Available Solutions:

Solution 1: Beta Firmware
To address this unexpected behavior, our development team has provided a beta firmware. Zuiko has verified this beta firmware. We recommend downloading and testing this beta firmware for users interested in doing so.

Before Upgrading

(1) It is always recommended to save a copy of the router's Backup Config file before upgrading or downgrading firmware.

(2) For instructions on how to upgrade your Archer Router Firmware, check out: How to Upgrade the Firmware on the TP-Link Wi-Fi Routers.

 

Direct Firmware Download Link

Model	Direct Download Link
Archer AX55_V1	Archer AX55_V1_1.3.5 Build 20250918(Beta Firmware)

 

Note: We encourage users who are not comfortable with installing beta firmware on their routers to pursue Solution 2.

 

Solution 2: Revert to the Previous Official Build
If you have updated to version 1.3.5 but do not want to test the beta firmware, you can also download and manually revert to version 1.3.3: Archer AX55(US)_V1_1.3.3 Build 20240628

 

Note: 

• Pre-release and Beta firmware should be used at your own discretion. We cannot guarantee the functionality of features or technical support for Pre-Release or Beta Firmware. 
   
• If you are not comfortable using beta firmware, please wait for the official fix or contact our support teams for assistance.

 

• Any additional beta firmware for affected models of other models will be added as it becomes available.
   
• This phenomenon will be addressed in future official firmware updates for affected models.

 

 

Additional Information

As always, we value your feedback. If you happen to encounter any concerns during or after the router firmware upgrade, please feel free to comment below with the following information. Your input helps us continue to improve and provide the best possible products and support.
 

• Provide a detailed network layout, including how the devices are connected.
   
• Include a detailed description of the issue and as much information as possible regarding the specific conditions that seem to trigger the behavior.

 

Thank you for your continued support and for being part of our community.