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2.4 Ghz slowness - not working

2.4 Ghz slowness - not working

2.4 Ghz slowness - not working
2.4 Ghz slowness - not working
2025-12-25 17:49:13 - last edited 2026-01-14 08:06:58
Tags: #2.4 GHz
Model: Archer C6  
Hardware Version: V2
Firmware Version: 1.3.7 Build 20220613 rel.64828

Hey! 
I was reading a lot of forums, but there were only workarounds (turn off-turn on settings), which are not working for me. 

A few months ago, my 2.4Ghz channel performance is super poor. 

I can see the network, I can connect, but the connection speed is changing. The average is:

Download 11.5 Mbps; Upload: 20.7 Mbps.

 

Wired connection is perfect, 939/64Mbps

 

5Ghz is perfect: 585/60 Mbps

 

I am sitting next to the router in a village, there is close to 0 interference.

I have played with these settings:

wireless settings: I have changed everything, password, mode, channel width, channel, etc...

disabled smart connect,

disabled OneMesh,

installed older firmware,

factory reset the device.

 

Is this in the end a hardware issue, which cannot be fixed? 
This error is so annoying, if this cannot be fixed, I will never ever but a TP-link again. Sorry.

 

Thanks for the feedback tho!

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#1
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1 Accepted Solution
Re:2.4 Ghz slowness - not working-Solution
2025-12-29 02:19:15 - last edited 2026-01-14 08:06:58

Hello @FreshPrince ,

Thanks for getting back to me.

 

The 2.4GHz band is susceptible to interference from other Wi-Fi, Bluetooth, and microwave oven devices. Please place the router in an open area, away from metal objects, microwave ovens, and load-bearing walls.

Also, please try the following suggestions:

  • Try placing it in the center of the house to avoid signal obstruction.
  • Adjust the antenna angle to a vertical position (this provides wider horizontal signal coverage).
  • Try connecting multiple devices (phone, tablet, laptop, etc.) to the Wi-Fi and observe if speed fluctuations occur on all devices.
  • Also, compare the 2.4GHz speed of other routers in the same environment to see if they operate stably.

 

If these steps don't help, please contact local support for further help.

Welcome to Our Community！ Check Out the Latest Posts: △New Firmware for Archer BE400 V1 to Support IPv6 VPN, Wake On LAN, and More △New Firmware for Archer BE800 V1 to Support VPN Merge, EasyMesh Guest/IoT Network Extend, and More △Enhanced EasyMesh Support with Extended Guest/IoT/MLO Networking and Advanced Features for BE550 V2 △New Firmware for Archer BE900 V2 to Support Multi-WAN, DoH/DoT, EasyMesh in AP Mode and More If you found the post or response helpful, 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:2.4 Ghz slowness - not working
2025-12-26 06:21:04

Hello@FreshPrince ,

Welcome to our community.

 

Please open a web browser and log in to your router's management page at http://tplinkwifi.net using your admin password.

Go to Advanced > Wireless > Wireless Settings:
1.Set up different Wi-Fi names for each frequency band (2.4GHz, 5GHz, 6GHz):

2.Change Wi-Fi channel and channel width for a try:Changing Channel and Channel Width on a TP-Link Router (new logo). (You may change 2.4G channel width to 40MHZ,  channels 1, 6 and 11 are generally best)

 

Welcome to Our Community！ Check Out the Latest Posts: △New Firmware for Archer BE400 V1 to Support IPv6 VPN, Wake On LAN, and More △New Firmware for Archer BE800 V1 to Support VPN Merge, EasyMesh Guest/IoT Network Extend, and More △Enhanced EasyMesh Support with Extended Guest/IoT/MLO Networking and Advanced Features for BE550 V2 △New Firmware for Archer BE900 V2 to Support Multi-WAN, DoH/DoT, EasyMesh in AP Mode and More If you found the post or response helpful, 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:2.4 Ghz slowness - not working
2025-12-26 09:59:07

Hello  @Joseph-TP , thank you for your quick reply. 

I have done the suggested changes (names were different already for the 2 channels), but it did not help.

I am still testing it, it is really strange. It starts at 1 Mbps, goes to 10 slowly, jumps to 100, back to 50.

Next speedtest: it starts with 1 Mbps, , then goes to 50.

Next one: it is stuck on 2Mbps the whole time.

Next one: starts at 2Mbps, then jumps to 70 and slowly decays.

Next one: stuck on 2 Mbps

scr

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#3
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Re:2.4 Ghz slowness - not working-Solution
2025-12-29 02:19:15 - last edited 2026-01-14 08:06:58

Hello @FreshPrince ,

Thanks for getting back to me.

 

The 2.4GHz band is susceptible to interference from other Wi-Fi, Bluetooth, and microwave oven devices. Please place the router in an open area, away from metal objects, microwave ovens, and load-bearing walls.

Also, please try the following suggestions:

  • Try placing it in the center of the house to avoid signal obstruction.
  • Adjust the antenna angle to a vertical position (this provides wider horizontal signal coverage).
  • Try connecting multiple devices (phone, tablet, laptop, etc.) to the Wi-Fi and observe if speed fluctuations occur on all devices.
  • Also, compare the 2.4GHz speed of other routers in the same environment to see if they operate stably.

 

If these steps don't help, please contact local support for further help.

Welcome to Our Community！ Check Out the Latest Posts: △New Firmware for Archer BE400 V1 to Support IPv6 VPN, Wake On LAN, and More △New Firmware for Archer BE800 V1 to Support VPN Merge, EasyMesh Guest/IoT Network Extend, and More △Enhanced EasyMesh Support with Extended Guest/IoT/MLO Networking and Advanced Features for BE550 V2 △New Firmware for Archer BE900 V2 to Support Multi-WAN, DoH/DoT, EasyMesh in AP Mode and More If you found the post or response helpful, click Helpful. If an answer solves your problem, click Recommended Solution so that others can benefit from it.
Recommended Solution
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#4
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