Archer AX73 / AX5400 - Slow Upload Speed

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Archer AX73 / AX5400 - Slow Upload Speed

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
Archer AX73 / AX5400 - Slow Upload Speed
Archer AX73 / AX5400 - Slow Upload Speed
2023-10-26 22:39:21 - last edited 2023-10-26 22:40:28
Model: Archer AX73  
Hardware Version: V1
Firmware Version: 1.3.5 Build 20230919 rel.12938(4555)

Hi,

 

I have the same problem of slow uploads via Wireless 5Ghz connection from different devices located less than one meter from the router without any obstacle or interference from nearby devices.

 

Referenced Thread: link

 

Internet Service: 600Mbs symmetrical fiber connection.

 

Firmware Version: 1.3.5 Build 20230919 rel.12938(4555)
Hardware Version: Archer AX73 v1.0
QoS: Disabled
Smart Connect: Disabled (same slowness enabled)
Airtime Fairness: Disabled (same slowness enabled)
Zero Wait DFS: Disabled (enabled same slowness)

USB: Disabled

VPN Server/Client: Disabled

IPv6: Disabled

WPS: Disabled

EasyMesh: Disabled

Smart Life Assistant: Disabled

Home Shield: Disabled

Operational Mode: Wireless Router Mode

 

Wireless 5Ghz Configuration (2Ghz disabled)
Security: WPA2-PSK [AES]
Transmit Power: High
Channel Width: 20/40/80/160MHz
Channel: Auto (tested all channels one by one with the same slowness result)

Guest Network: Disabled 2Ghz/5Ghz

 

All speed tests have been performed using the speedtest page by selecting my operator's server to ensure reliable results.

 

Analysis 1
Test with the ZTE F6640 router, offered for free by my internet provider with the fiber connection, using Wireless 5Ghz connection. In more than 10 consecutive tests, the router achieves upload and download speeds above 600Mbs. In some cases the upload speed is around 580Mbs, but always above 550Mbs (once the tests are finished I turn off the router).

 

Analysis 2
Test with the Archer AX73 router using a 1Gb Full Duplex ethernet port connection with category 7 cable. In more than 10 consecutive tests, the router achieves upload and download speeds above 600Mbs. The speeds never go below 600Mbs, being superior in all tests to the ZTE F6640 router (once the tests are finished I disconnect the cable).

 

Analysis 3
Test with the Archer AX73 router using Wireless 5Ghz connection disabling QoS, Smart Connect, Airtime Fairness and Zero Wait DFS. In more than 10 consecutive tests, the router achieves download speeds above 600Mbs, but in the upload it does not exceed 480Mbs. This test was repeated by selecting one by one the different Wireless 5Ghz channels (from 36 to 128DFS).

 

All of the above tests have been repeated from devices from different manufacturers and with different card models certified for Wifi 6. None of these devices present performance problems with the ZTE equipment or other wifi access points that I have been able to test.

 

I have reset the router and started all configurations from scratch and tried all configurations one by one, always with the same result. A worse quality router from my provider with the same conditions and distance to the devices has a clear better performance on Wireless 5Ghz uploads. I rule out problems with the internet or the AX73 router itself, since by cable it gets speeds above 600Mbs, no matter what configuration I have in the router.

I think there is a bug at the firmware level that causes the Wireless card integrated in this router not to operate normally. I think this is a serious bug considering the cost of this device.

 

Can you help me with this issue? Is there any workaround to solve this problem?

 

Thanks

 

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#1
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5 Reply
Re:Archer AX73 / AX5400 - Slow Upload Speed
2023-10-27 03:52:12

  @grisno 

 

Hi, when connecting to 5G WiFi of the Archer AX73 router, please go to Network Map page in the router web interface, then click Clients and check Tx/Rx Rate(Mbps) of the 5G WiFi clients:

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router EasyMesh Is Available When Wi-Fi Routers Work in AP Mode as A Controller. Archer BE550 New Software Enhances System Stability and Optimizes MLO Network Stability. TL-WA3001 Supports EasyMesh, Speed Limit, Guest Network in AP Mode and/or Multi-SSID Mode. 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:Archer AX73 / AX5400 - Slow Upload Speed
2023-10-27 11:19:18 - last edited 2023-10-27 11:28:16

Hi  @Sunshine 

 

I attach a screenshot of two devices connected by Wireless 5Ghz that are certified for Wifi 6. On both you can see that they sync above 600Mbps. During the tests

 

During the test run with the surface equipment, there is a small oscillation in the synchronization, never dropping below 2100Mbps. In the case of iPhone13 the same thing happens and the synchronization never drops below 1100Mbps.

 

I remove the mac address of the devices in the screenshot for privacy reasons.

 

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#3
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Re:Archer AX73 / AX5400 - Slow Upload Speed
2023-10-30 03:38:11

  @grisno 

 

Hi, To assist you efficiently, I've forwarded your case to the TP-Link support engineers who will contact you with your registered email address later.

Please pay attention to your email box for follow-up.

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router EasyMesh Is Available When Wi-Fi Routers Work in AP Mode as A Controller. Archer BE550 New Software Enhances System Stability and Optimizes MLO Network Stability. TL-WA3001 Supports EasyMesh, Speed Limit, Guest Network in AP Mode and/or Multi-SSID Mode. 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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#4
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Re:Archer AX73 / AX5400 - Slow Upload Speed
2024-03-10 17:28:15

  @grisno 

Did you solve this problem? I have the same issue, but I have a much larger difference between download and upload speeds

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#5
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Archer AX73 / AX5400 - Slow Upstream Speed
2024-04-25 16:50:09

It seems to be a chronical TP-Link routers flaw.

 

AX73 Firmware Version: 1.3.5 Build 20230919 rel.12938(4555)
Hardware Version: Archer AX73 v2.0

 

Internet Service: HFC DOCSIS 3.1 500mbps downstream/150mbps upstream. ISP cable modem configured as bridge. ISP Claro-NET Virtua Rio de Janeiro

 

Topology: star ethernet 1Gbps backhaul core Archer AX73 and three Archer AX53 as APs

 

Environment: a 1000Gbps full duplex ethernet connected at LAN port of AX73, speedtest.com 3 average results: downstream 565 mbps upstream 73 mbps (50% ISP makes available).

 

Please help me to get the full 150mbps.

 

QoS: Disabled
Smart Connect: Enabled
Airtime Fairness: Enabled
Zero Wait DFS: Enabled

USB: Disabled

VPN Server/Client: Disabled

IPv6: Disabled

WPS: Disabled

EasyMesh: Enabled I need this feature

Smart Life Assistant: Enabled

Home Shield: Disabled

Operational Mode: Wireless Router Mode

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Helpful: 1

Views: 1655

Replies: 5

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