Archer C7 - Slow Download / Fast Upload on Wireless

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Archer C7 - Slow Download / Fast Upload on Wireless

This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
Archer C7 - Slow Download / Fast Upload on Wireless
Archer C7 - Slow Download / Fast Upload on Wireless
2019-03-23 13:28:50
Model: Archer A7  
Hardware Version: V5
Firmware Version: 1.0.4 Build 20180425 rel.72768(4555)

I have a 1Gbps internet connection into my house and I've just bought a Archer C7 to make the best use of it. Plugging my laptop directly into the router, I get the speeds I'd expect, 500+ Mbps for both upload and download:

 

 

When I test using wireless however (5 GHz / 802.11ac / auto channel & width) I get very strange results. My upload speed is much faster than my download speed. On wireless I would've expected both upload and download to be around 500 Mbps but my download is only around 150 Mbps.

 

QoS is disabled since I've got NAT Boost on. I've tried turning NAT Boost off but that makes it worse. WMM is enabled but it doesn't make much difference if I disable that. Around me there are only 2 other 5 GHz networks being broadcast, one is on channel 52 and the other is on channel 44. My router is auto setting to 36 with a 80 MHz width so there doesn't appear to be any significant interference. The wireless test was performed with my laptop right next to the router and I've tried with a few devices but just got the same result with every device. I've got the latest firmware installed as well.

 

Has anyone come across this issue or know of a fix?

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#1
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6 Reply
Re:Archer C7 - Slow Download / Fast Upload on Wireless
2019-03-25 07:07:31

Hi,

 

do all the devices have the slow speed issue when they connected to the 5GHz? 

 

Try check the wireless link speed as below instruction: https://www.tp-link.com/en/support/faq/2265/

 

Meanwhile, what about the speed you can get from 2.4GHz? Is it better? 

 

Good day. 

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#2
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Re:Archer C7 - Slow Download / Fast Upload on Wireless
2019-04-01 06:41:08

Did you log a support ticket with the team? 

 

I am having the same issue

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#3
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Re:Re:Archer C7 - Slow Download / Fast Upload on Wireless
2019-04-01 07:01:58

Lumpees wrote

Did you log a support ticket with the team? 

 

I am having the same issue

Hi,

 

Have you ever tried the troubleshooting methods mentioned above?

 

What is the wireless negotiation speed? It is important cause it affects actual speed a lot.

 

Meanwhile, what about wired speed and 2.4GHz? Are they good?

 

 

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#4
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Re:Re:Re:Archer C7 - Slow Download / Fast Upload on Wireless
2019-04-12 06:59:50

Yip,  

sam thing. 

 

it is as if the WAN to LAN is bridged or hard coded to not provide full throughput

my 5Ghz is decent...but LAN speeds are killing me. 

 

I opened a support ticket with TPLink and followed about 70 instructions on what to change....NAT is enabled, NAT boost makes not difference...

 

there is something really wrong with the LAN configuration on these devices

 

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#5
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Re:Re:Re:Re:Archer C7 - Slow Download / Fast Upload on Wireless
2019-04-19 06:40:56

Lumpees wrote

Yip,  

sam thing. 

 

it is as if the WAN to LAN is bridged or hard coded to not provide full throughput

my 5Ghz is decent...but LAN speeds are killing me. 

 

I opened a support ticket with TPLink and followed about 70 instructions on what to change....NAT is enabled, NAT boost makes not difference...

 

there is something really wrong with the LAN configuration on these devices

 

Hi Lumpees,

 

any updates now? Did you get it solved with TP-Link tech support yet?

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#6
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Re:Archer C7 - Slow Download / Fast Upload on Wireless
2019-10-27 12:41:03

The same on for me on 1.0.11 Build 20190726 rel.57101(4555) .

Any updates from support?

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#7
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