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Download speed limited to ~80 Mbps (should be ~250)

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Download speed limited to ~80 Mbps (should be ~250)

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
Download speed limited to ~80 Mbps (should be ~250)
Download speed limited to ~80 Mbps (should be ~250)
2019-10-20 18:50:28 - last edited 2019-10-22 08:21:35
Model: Archer C3150  
Hardware Version: V2
Firmware Version: 2.1.0 0.9.1 v005f.0 Build 170927 Rel.57074n

I have a subscription for 250 Mbps download (/25 Mbps up). When I connect my laptop straight to the cable coming from the modem, Speedtest.org shows the 250/25 Mbps.

If I then connect the modem cable to the C3150 (Ïnternet port), the Speedtest in the router ("Network map - tab Basic") also shows the 250/25 Mbps. 

However, when I connect my laptop to either outgoing port, the download is limited to ~80 Mpbs, upload still around the expected 20 Mbps. I use all CAT6 cables.

Any suggestions how to revolve this?

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1 Accepted Solution
Re:Download speed limited to ~80 Mbps (should be ~250)-Solution
2019-10-21 15:49:10 - last edited 2019-10-22 08:21:35

@Kevin_Z 

 

Thanks for your quick response. 

 

The speed shown on the NICs is allways  1.0 Gbps. Sorry to say, but I can't find the "negotiation speed of the LAN ports" in the Basic-network map. 

 

However, the good news: I disabled the QoS for my wifi-extender and now all connections work at full speed!

I don't think I really need the QoS, therefore: Problem solved (or at least bypassed).

 

Thanks for your support!

 

Kind regards, Herbert

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Re:Download speed limited to ~80 Mbps (should be ~250)
2019-10-21 02:38:30

@HerbertV 

 

Thanks for your requesting, we will do some troubleshooting first. 

 

With computer connected to the Archer C3150 by wired cable, please click here to verify the wired negotiation speed. 

Note: The steps are the same, while you need right click on ethernet connection or local area connection. 

 

Then please login to the web UI of the Archer C3150 and go to Basic-network map page to check the negotiation speed of the LAN ports. 

 

Besides, have you enabled QoS on the router? If so, you can turn it off and give it a go. 

 

Best regards. 

 

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 AX55V2 Supports WireGuard VPN, EasyMesh Ethernet Backhaul, IoT Network, Speed Limit,and More 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:Download speed limited to ~80 Mbps (should be ~250)-Solution
2019-10-21 15:49:10 - last edited 2019-10-22 08:21:35

@Kevin_Z 

 

Thanks for your quick response. 

 

The speed shown on the NICs is allways  1.0 Gbps. Sorry to say, but I can't find the "negotiation speed of the LAN ports" in the Basic-network map. 

 

However, the good news: I disabled the QoS for my wifi-extender and now all connections work at full speed!

I don't think I really need the QoS, therefore: Problem solved (or at least bypassed).

 

Thanks for your support!

 

Kind regards, Herbert

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#3
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Re:Download speed limited to ~80 Mbps (should be ~250)
2019-10-22 08:20:46

@HerbertV 

 

Thanks Herbert for your reply, glad to hear that you figured it out finally. 

 

For the negotiation speed of the LAN port, you can refer to https://www.tp-link.com/support/faq/2427/

 

And you can take more time to verify its performance. 

 

Any further problem, just let us know. 

 

Good day. 

 

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 AX55V2 Supports WireGuard VPN, EasyMesh Ethernet Backhaul, IoT Network, Speed Limit,and More 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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