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Issues with Archer A6 and C6 - Extremely slow speed on 2.4GHz

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Issues with Archer A6 and C6 - Extremely slow speed on 2.4GHz

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Issues with Archer A6 and C6 - Extremely slow speed on 2.4GHz
Issues with Archer A6 and C6 - Extremely slow speed on 2.4GHz
2020-06-13 15:15:03
Model: Archer C6  
Hardware Version: V2
Firmware Version:

Hello, I bought an Archer A6 last week and the 5GHz was working great with ~90Mbps speed on my 100Mbps internet connection (PPOE). But the 2.4Ghz was extremely slow, the maximum I saw was ~20Mbps. 

 

I spent hours troubleshooting with TP Link phone support, we tried with both Smart Connect On and Off, tried on channels 1,6 and 11 with different Channel width. Tried with No encryption and security, changed RTS threshold to 2304, didn't make any difference and the 2.4GHz speed only seemed to get worse. Did factory reset as well. It was a V2 and a US version and already had the latest version from Feb19.

The tech suggested that it appears to be a faulty item and i should return it, and i did.

 

Now i got a new Archer C6 version 2(EU) today and i have the exact issue on it, ~20Mbps speed on 2.4Ghz and 5GHz works fine. I'm perplexed spending hours on it while my old single band N150 router still gives me a speed of ~40Mbps on 2.4Ghz.

 

Anyone knows what could be causing this or suggest a fix? I've updated the firmware to the latest one (Apr20) from TP link website. 

 

Thanks a lot.

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#1
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27 Reply
Re:Issues with Archer A6 and C6 - Extremely slow speed on 2.4GHz
2020-06-13 15:44:48

@RSH99 

Hi,

 

what connection speed shows your wlan client, while you do the speedtest ? 

 

Best regards.

Archer AX73(EU)V1 in Router Mode to use OneMesh with RE300 (used as AP only)
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#2
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Re:Issues with Archer A6 and C6 - Extremely slow speed on 2.4GHz
2020-06-13 16:04:48

@aTOMic1971 

 

It ranges between 5-20 Mbps on my phone and laptop, while on 2.4GHz network.

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#3
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Re:Issues with Archer A6 and C6 - Extremely slow speed on 2.4GHz
2020-06-13 16:51:00
I mean the theoretical WiFi speed that your client negotiates with the acesspoint. Is it only about 20mbits ? In good range you should get 300mbits with 40 mhz and about 150mbits with 20 mhz. When you get 150mbits, it means that you can get about 75mbits out of the connection in real life. .
Archer AX73(EU)V1 in Router Mode to use OneMesh with RE300 (used as AP only)
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#4
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Re:Issues with Archer A6 and C6 - Extremely slow speed on 2.4GHz
2020-06-13 16:57:07

@aTOMic1971 

Thank you.

 

The link speed from Network and Sharing center on my laptop it's 150Mbps. When i try different steps, like changing the channels and security etc, I've seen it change to 72Mbps, but never lower than that. This is when it's connected to 2.4GHz SSID. 

 

On my phone it's 72Mbps on 2.4GHz.

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#5
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Re:Issues with Archer A6 and C6 - Extremely slow speed on 2.4GHz
2020-06-13 17:19:50

@RSH99 

 

This is normal, the theoretical speed depends on the hardware of your devices.

When you test the real life speed, the speed in Networking Center does not change ?

Maybe interference ?

Change the position of your router antennas a bit  and test again.

Archer AX73(EU)V1 in Router Mode to use OneMesh with RE300 (used as AP only)
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#6
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Re:Issues with Archer A6 and C6 - Extremely slow speed on 2.4GHz
2020-06-13 17:32:20

@aTOMic1971 

 

I've tried it, different locations and antenna positioning, but to no avail :(

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#7
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Re:Issues with Archer A6 and C6 - Extremely slow speed on 2.4GHz
2020-06-13 17:33:26
And no, no changes in link speed during speed test.
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#8
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Re:Issues with Archer A6 and C6 - Extremely slow speed on 2.4GHz
2020-06-13 18:19:16 - last edited 2020-06-13 18:22:30

@RSH99 

It seems that i could not help you in your case.

For 2.4ghz I can give you some tips:. 

Use wpa2 with aes only do not use mixed mode.

Use wireless mode g+n if your clients accept that. 

WMM and short gi should be enabled under systemparameters to get higher speed.

Disable MU Mimo for 5ghz when you dont need that.

 

Hope this helps you a bit.

 

Best regards and good luck..

Archer AX73(EU)V1 in Router Mode to use OneMesh with RE300 (used as AP only)
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#9
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Re:Issues with Archer A6 and C6 - Extremely slow speed on 2.4GHz
2020-06-13 18:51:34

@aTOMic1971 

 

Yep, already tried the security options with no success. I've just packed it and put it out of my sight awaiting its return pickup, it's just way too aggravating and utter waste of time! This was my first and definitely my last experience with TP link.

 

I do sincerely thank you for your attempt to help. :)

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#10
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Re:Issues with Archer A6 and C6 - Extremely slow speed on 2.4GHz
2020-06-15 04:44:50

@RSH99 

I also have been facing the same issues(The router is just 3 weeks old) + the poor response from their customer service. Tech support tried all the steps and suggested to return the product as it seems be a faulty one. I followed up with them multiple times and then someone suggested to drop an email to rma.in@tp-link.com . I dropped an email to them and requested them to replace this product with a new one and then I got this amazing reply from them

 

"TP-Link RMA
Jun 10, 2020, 7:38 PM (5 days ago)
to me

Dear Customer,

Sorry for the Inconvenience,

We have one service center located in Delhi, please check whether it is nearby to you,

TP-Link India Pvt. Ltd.

Flat No. 409, 4th Floor Raja House, 30-31,

Behind Sona Sweet, Nehru Place,

New Delhi – 110019

Mob no.- +91-1141048001

10:00 AM to 6:00 PM- Monday to Friday

10:00 AM to 1:30 PM on Saturday (Excluding Public Holiday)"

 

I replied immediately

"Wow, such an amazing response from you guys.

Why do you think I should bother myself in this lockdown for a product which I bought like just 2 weeks back and that too such far away location from my place.

Its a brand new router and I don't understand what problem you have in simply replacing it with another one when all the troubleshooting has been done.

Please understand the urgency of the situation and requesting you to respond appropriately, please.

Regards"

 

-- I have been following up with them regulary and they dont seem to be interested in replying since then.

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#11
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