Archer C6 - Ethernet negotiation at 100Mbps

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Archer C6 - Ethernet negotiation at 100Mbps

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
40 Reply
Re:Archer C6 - Ethernet negotiation at 100Mbps
2020-12-21 10:04:34

@Kevin_Z 

 

Hello Kevin,

 

I updated the firmware to the last stable version.



Wi-fi seems stable... but I'm with the same problem with negotiation speed.

 

 

 

 

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#32
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Re:Archer C6 - Ethernet negotiation at 100Mbps
2020-12-21 23:01:32

@Kevin_Z 


The old issue with the wifi appeared again.
 

All my family reported that the internet is slow and instable in 5G.

 

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#33
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Re:Archer C6 - Ethernet negotiation at 100Mbps
2020-12-22 02:53:10

@Joao_Hutner 

 

Sorry to hear that. It is suggested to change the Ethernet cable between your PC and the C6 LAN1 with new Cat 5E or Cat 6 one. Then on the C6 make sure you have the setting for Duplex to Auto negotiation.


If you are using the same Ethernet cable to connect your PC to the ISP mode directly and observe speed is 1Gbps and then this same cable to connect the PC to your C6 and observe only 100 Mbps, that means C6 can't negotiate faster speed with this cable, either C6 doesn't like this cable or your C6 Internet port is faulty.

 

As for the 5G slow and instable issue, try to modify the 5G wireless settings, such as wireless channel to 36/40/44/48, channel width to 80MHz, wireless security to WPA2-PSK/AES, then reboot the C6 and reconnect to its wireless again.

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 EasyMesh Is Available When Wi-Fi Routers Work in AP Mode as A Controller. 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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#34
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Re:Archer C6 - Ethernet negotiation at 100Mbps
2020-12-22 03:02:33

@Kevin_Z 

Just like I said before, when I connect the cable direct to my modem I get the 1gb speed (and I already changed it 3 times and with the 3 routes I get the 1gb speed).

So... the problem is the C6 router.

 

And the WiFi I already tried everything, only changing the firmware to a older version I can use the internet properly via WiFi.

 

And now?

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#35
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Re:Archer C6 - Ethernet negotiation at 100Mbps
2020-12-22 10:02:42

@Joao_Hutner 

 

To locate this issue and try to fix it, we would like to follow up on your case via email. Please check your inbox and provide the information that we need.

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 EasyMesh Is Available When Wi-Fi Routers Work in AP Mode as A Controller. 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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#36
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Re:Archer C6 - Ethernet negotiation at 100Mbps
2021-01-15 07:11:54

@Symptomatic 

 

I am encountering the same for my Archer C80. I am already using cat5e but LAN is just showing 100Mbps on the TP-Link's Ethernet status. My NIC is gigabit. 

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#37
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Re:Archer C6 - Ethernet negotiation at 100Mbps
2021-01-15 07:38:25

Please disregard my previous post. I saw the issue. It's on my driver settings. Need to switch Speed & Duplex from 100Mbps to 1.0 Gbps Full Duplex. Now it's working fine.

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#38
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Re:Archer C6 - Ethernet negotiation at 100Mbps
2021-01-30 19:21:00
Hi there... Had the same 100Mbps limitation. Followed your steps solution, reebooted the C6, but the LAN1 was still on 100Mbps. Then i changed the cable to the LAN2 port, and it was solved, 1000Mbps...
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#39
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Re:Archer C6 - Ethernet negotiation at 100Mbps
2021-05-05 01:20:29

@Kevin_Z
Same Issue with the Archer C7. I have a CAT7 Ethernet cable.  Even I'm changing the duplex to 1000 mpbs its not working.

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#40
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Re:Archer C6 - Ethernet negotiation at 100Mbps
2021-05-06 06:06:00

@W1zz 

 

What is the device and model of the adapter that connected to the LAN port of the Archer C7? Have you tried to connect other devices with a gigabit Ethernet port to one of the LAN ports of the Archer C7 to check if the link speed can be 1000Mbps?

 

Try with different LAN ports, as well as different Ethernet cables, cat5e or cat6 is OK.

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 EasyMesh Is Available When Wi-Fi Routers Work in AP Mode as A Controller. 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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#41
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