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Poor WIFI speed

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Poor WIFI speed

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Poor WIFI speed
Poor WIFI speed
2020-08-27 14:57:36 - last edited 2020-08-28 06:51:36
Model: Archer C9  
Hardware Version: V5
Firmware Version:

I have continuously low speed at my WIFI connection (not at LAN-cable, only at WIFI). My internet fiber service provider gives us 1.000 mbps, and by LAN the latest test through the router on site show approx. 900 mbps. However, the big issue is, I can only get approx. 100-110 mbps by WIFI when being just near the router, and 50-80 mbps when being 5 meters from the router, and 20-25 mbps when being on 1st floor just above the router. The router is an Archer C9 dual-band. I have 5 devices using the WIFI, 2 smart phones, 2 tablets and 1 laptop, where I have tried to have these disconnected but without different results at the WIFI-speed. I have tried everything to optimize the WIFI and followed the steps at solution-guides several times . However, nothing seems to be working. What can I do?

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1 Accepted Solution
Re:Poor WIFI speed-Solution
2020-08-28 06:51:11 - last edited 2020-08-28 06:51:36

@AndersV 

 

Hello, sorry to hear the Wi-Fi speed is not as good as expected, please help verify some details and we will try to fix it together:

1. Ensure the C9 firmware is up-to-date. If not, update it first and reconfigure it from scratch.

2. How did you test this Wi-Fi speed via the router? Did you disconnect all the other devices from it and only leave one laptop or phone performing the test? It is suggested to change a new SSID and password and connect only one phone or laptop to perform the speedtest 3 times.

3. How about the wireless negotiation speed on that device? Is it connected to 5GHz or 2.4GHz? If the link speed is not as good as expected, please try another wireless device with more powerful wireless cards.

4. Are you testing the speed by speedtest.net? Please try to download the Speedtest app on your phone or laptop and simplify your network layout if there are other routers or RE in your network, just leave the modem and the C9 on, disconnect other devices and run the Speedtest app 3 times. Please ensure the 2.4GHz wireless channel width is set to 40MHz and 5GHz is 80MHz. Here is the guide to modify the wireless settings on the router:
https://www.tp-link.com/support/faq/2292/

5. Please disable QoS on the C9 (if there is one) or try to reset it to the factory defaults, then reconfigure it from scratch.

 

Additionally, please refer to the instruction below to narrow down the issue. 
https://www.tp-link.com/support/faq/2170/

 

May it help.

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:Poor WIFI speed-Solution
2020-08-28 06:51:11 - last edited 2020-08-28 06:51:36

@AndersV 

 

Hello, sorry to hear the Wi-Fi speed is not as good as expected, please help verify some details and we will try to fix it together:

1. Ensure the C9 firmware is up-to-date. If not, update it first and reconfigure it from scratch.

2. How did you test this Wi-Fi speed via the router? Did you disconnect all the other devices from it and only leave one laptop or phone performing the test? It is suggested to change a new SSID and password and connect only one phone or laptop to perform the speedtest 3 times.

3. How about the wireless negotiation speed on that device? Is it connected to 5GHz or 2.4GHz? If the link speed is not as good as expected, please try another wireless device with more powerful wireless cards.

4. Are you testing the speed by speedtest.net? Please try to download the Speedtest app on your phone or laptop and simplify your network layout if there are other routers or RE in your network, just leave the modem and the C9 on, disconnect other devices and run the Speedtest app 3 times. Please ensure the 2.4GHz wireless channel width is set to 40MHz and 5GHz is 80MHz. Here is the guide to modify the wireless settings on the router:
https://www.tp-link.com/support/faq/2292/

5. Please disable QoS on the C9 (if there is one) or try to reset it to the factory defaults, then reconfigure it from scratch.

 

Additionally, please refer to the instruction below to narrow down the issue. 
https://www.tp-link.com/support/faq/2170/

 

May it help.

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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