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AX50 WAN speed limit to 100M

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AX50 WAN speed limit to 100M

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AX50 WAN speed limit to 100M
AX50 WAN speed limit to 100M
2021-01-18 10:22:30 - last edited 2021-07-19 07:15:30
Model: Archer AX50  
Hardware Version: V1
Firmware Version: 1.0.9 Build 20200708 rel.55037(5553)

I bought AX50 recently. I found my router WAN speed limit to 100M.

My ISP service is HKBN with 500M.  I called my ISP customer service today, they checked my router's WAN speed is 100M. 

I use all CAT 6 Cables. I tried to reboot the router many time and still no luck......

I use my computer with LAN line (CAT 6) and iPhone 12 WIFI check with "Speedtest.net" is about 95Mbps.

Is AX50 have a hardware problem for this issue??

 

Please help!

 

Thanks

 

Tim

 

 

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#1
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1 Accepted Solution
Re:AX50 WAN speed limit to 100M-Solution
2021-07-19 07:15:21 - last edited 2021-07-19 07:15:30

Hi, if any of you still encounters an issue with the speed, which is capped at 100 Mbps when connecting to the TP-Link router, please check the troubleshooting suggestions we provided here, and report back if the issue is resolved or not:

[Troubleshooting] Speed limit to 100 Mbps

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router Archer BE800 New Firmware Added Support for EasyMesh in AP Mode, DoH&DoT, and 3-Band MLO Connection Archer AX90 New Firmware Added Support for EasyMesh and Ethernet Backhaul If you found a post or response helpful, please click Helpful (arrow pointing upward icon). If you are the author of a topic, remember to mark a helpful reply as the "Recommended Solution" (star icon) so that others can benefit from it.
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Re:AX50 WAN speed limit to 100M
2021-01-18 14:03:15 - last edited 2021-01-18 14:11:43

@TimKan 

 

Check if this is set to 'Auto Negotiation':

 

 

 

Check the negotiated speed of your AX50 internet port:

 

 

It should be connected @1000 mbps.

Otherwise change the setting to :

and again check the internet port speed.

If it's still connected @100 mbps try with another Cat5e/6 cable or change the port of your ISP device, where you're connecting AX50 (if possible).

 

If this was helpful click on the arrow pointing upward to make it blue. If this solves your issue, click the star to make it blue and mark the post as a "Recommended Solution".
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Re:AX50 WAN speed limit to 100M
2021-01-18 14:25:05
Thank you very much. It's work after I changed the Duplex Setting to "1000Mbps full duplex". I think my ISP service is 500Mbps , "Auto Negotiated" was picked "100Mbps full duplex" insteal of "1000Mbps full duplex"
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#3
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Re:AX50 WAN speed limit to 100M
2021-04-14 06:37:34 - last edited 2021-04-14 08:23:47

I am having similar issues with the AX50 (running firmware version 1.0.9). ISP Connection is 300Mbps.
Manually changing speed to 1000Mbps full duplex seems to temporarily work. After some time, it seems it will default back to 100 (even if setting is 1000) according to the speed tests I made (no more that 100Mbps)

To get it working again, I have to cycle through the Internet port speed settings (from Auto to 1000Mbps) without power cycling the device.

 

 

 

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#5
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Re:AX50 WAN speed limit to 100M
2021-04-14 08:41:04

@dragos.bogdan 

 

Can we have the name of your ISP, and the model of the modem provided by them? Ensure the modem LAN port can auto negotiate stably to 1000Mbps by connecting a computer with gigabit adapter to it.

 

As suggested by terziyski, it is suggested to try with another Cat5e/6 cable or change the port of your ISP device, where you're connecting AX50 (if possible), then confirm again.

 

One more step, do you mean even the negotiation speed is still showing 1000Mbps on the AX50 web page, the actual speed dropped to no more than 100Mbps? How about the link speed on the device connected to the AX50 LAN at that time? If it is a computer, you can find it as below:

https://www.tp-link.com/support/faq/2899/

 

Additionally, please follow this troubleshooting guide to confirm all the basic and advanced settings on the AX50, ensure no settings affect the speed:

https://www.tp-link.com/support/faq/2170/

 

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router Archer BE800 New Firmware Added Support for EasyMesh in AP Mode, DoH&DoT, and 3-Band MLO Connection Archer AX90 New Firmware Added Support for EasyMesh and Ethernet Backhaul If you found a post or response helpful, please click Helpful (arrow pointing upward icon). If you are the author of a topic, remember to mark a helpful reply as the "Recommended Solution" (star icon) so that others can benefit from it.
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#6
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Re:AX50 WAN speed limit to 100M-Solution
2021-07-19 07:15:21 - last edited 2021-07-19 07:15:30

Hi, if any of you still encounters an issue with the speed, which is capped at 100 Mbps when connecting to the TP-Link router, please check the troubleshooting suggestions we provided here, and report back if the issue is resolved or not:

[Troubleshooting] Speed limit to 100 Mbps

Nice to Meet You in Our TP-Link Community. Check Out the Latest Posts: Connect TP-Link Archer BE550 to Germany's DS-Lite (Dual Stack Lite) Internet via WAN Archer GE550 - BE9300 Tri-Band Wi-Fi 7 Gaming Router Archer BE800 New Firmware Added Support for EasyMesh in AP Mode, DoH&DoT, and 3-Band MLO Connection Archer AX90 New Firmware Added Support for EasyMesh and Ethernet Backhaul If you found a post or response helpful, please click Helpful (arrow pointing upward icon). If you are the author of a topic, remember to mark a helpful reply as the "Recommended Solution" (star icon) so that others can benefit from it.
Recommended Solution
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#7
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Re:AX50 WAN speed limit to 100M
2021-09-14 16:17:01

@TimKan 

please disable QoS setting, case will be resume normal.

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#8
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