Archer T4U won't connect to 5GHz network but will connect to 2.4GHz network

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Archer T4U won't connect to 5GHz network but will connect to 2.4GHz network

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Archer T4U won't connect to 5GHz network but will connect to 2.4GHz network
Archer T4U won't connect to 5GHz network but will connect to 2.4GHz network
2017-03-07 03:46:15 - last edited 2020-09-07 03:26:38
Model :

Hardware Version :

Firmware Version :

ISP :

Model : Archer T4U

Hardware Version : V1.0

Firmware Version :

I have been using this adapter since january and always connected on the 5ghz network provided by my router (Archer D2 configured as AP). Yesterday there was a power outage while my pc was on. Since then I cannot connect on the 5ghz network. I tried rebooting my pc multiple times, turning my router off/on multiple times as well, reinstalling the drivers for the adapter, installing tp link utility to try and connect, to no avail. The 2.4GHz network wor flawlessly but I want to use the 5GHz one.

Ps.: Pc is a windows 10 x64 desktop with the adapter connected with the provided usb 3.0 cable on a usb 3.0 port (tried changing the port as well)
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#1
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1 Accepted Solution
Re:Archer T4U won't connect to 5GHz network but will connect to 2.4GHz network-Solution
2020-09-07 03:26:11 - last edited 2020-09-07 03:29:13

@Shaurya666 

Good day.

Sorry for the delay.

You could detect the 5Ghz, but not able to connect or join this wireless network, right?

Is there any error message?

Have you ever tested with other 5Ghz networks?

please also try to update the following driver:https://static.tp-link.com/2020/202006/20200601/00015960-RTLWlanU_WindowsDriver_1030.38.0712.2019_Drv_3.00.0032.L.zip 

(how to update the driver: https://www.tp-link.com/support/faq/920/)

By the way, what is the model number of your wireless router?

Could you please help me check the system info on the computer, such as https://www.tp-link.com/support/faq/2722/?

Thank you very much.

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Re:Archer T4U won't connect to 5GHz network but will connect to 2.4GHz network
2020-09-03 07:06:59

@vinardo888 I am having the same problem but had no fix. I just bought the adapter last month.

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Re:Archer T4U won't connect to 5GHz network but will connect to 2.4GHz network-Solution
2020-09-07 03:26:11 - last edited 2020-09-07 03:29:13

@Shaurya666 

Good day.

Sorry for the delay.

You could detect the 5Ghz, but not able to connect or join this wireless network, right?

Is there any error message?

Have you ever tested with other 5Ghz networks?

please also try to update the following driver:https://static.tp-link.com/2020/202006/20200601/00015960-RTLWlanU_WindowsDriver_1030.38.0712.2019_Drv_3.00.0032.L.zip 

(how to update the driver: https://www.tp-link.com/support/faq/920/)

By the way, what is the model number of your wireless router?

Could you please help me check the system info on the computer, such as https://www.tp-link.com/support/faq/2722/?

Thank you very much.

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