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T3U not connecting to 5GHz following Windows Update

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T3U not connecting to 5GHz following Windows Update

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T3U not connecting to 5GHz following Windows Update
T3U not connecting to 5GHz following Windows Update
2020-08-05 17:58:41
Model: Archer T3U  
Hardware Version: V1
Firmware Version:

Hi,

 

I have just updated to Windows 10 (2004) and now my device no longer connects to 5GHz wifi network. 2.4GHz are unaffected. I have spoken to support live chat and they suggested uninstalling the latest tp link driver (from 2018), and reinstall it in safe mode. This has been done but obviously didn't make any difference. 

 

Anyone else having a similar issue still? I saw some posts from other users that a recent windows update also caused issues for them.

 

Current driver version: 1030.22.202.2018

 

 

 

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Re:T3U not connecting to 5GHz following Windows Update
2020-08-06 01:10:29

@Milopup 

Good day!

For your case, could you please help me check the following information:

May I know the system info about your computer, such as https://www.tp-link.com/support/faq/2722/

And was it only unable to detect your router’s 5Ghz, or neither 5Ghz Wi-Fi could be detected?

And if possible, please try to modify the wireless settings on the 5Ghz of router to see if that helped, such as channel 40 , channel width 40mhz for the 5ghz;

 

Thank you~

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Re:T3U not connecting to 5GHz following Windows Update
2020-08-06 12:21:36 - last edited 2020-08-06 12:29:36

Hi @Kathy_Z 

 

I have tried disabling the 2.4GHz network, and change the 5GHz to channel 40. It can still only see the network but not connect to it.

 

What system info would you like?

 

Windows 10 pro

Build: 10.0.19041

FM2A88M Extreme+ motherboard, plugged into USB 3 port.

 

TP link firmware version as in the first post.

 

Current speedtest.net results on PC with T3U dongle...1.52Mbps download, and 45.44Mbps upload, ping 18ms

Current speedtest.net results on the laptop sat next to the PC (using it's inbuilt wireless)...225Mbps download, 49Mbps upload, ping 16ms

 

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Re:T3U not connecting to 5GHz following Windows Update
2020-08-18 11:44:22

@Milopup 

Good day.

Sorry for the delay.

Is there any error message when you failed to connect to the 5ghz network?

And please also try to update to the following driver:

https://static.tp-link.com/2020/202006/20200601/00015960-RTLWlanU_WindowsDriver_1030.38.0712.2019_Drv_3.00.0032.L.zip

by the way, may I know the model number of your Wi-Fi router?

Thank you very much!

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