Hello.

I Think my problem was solved but not, i still have the same issue like before, i try another beta drivers but still same problem. So i use the cheap wifi from aliexpress. I recomended it to all of you, this tp lini get on the shelf. I dont have power to waste of time with this. 

So I ran into further issues with the beta driver, it would the connection completely about once a day. This would require a restart or a run of the troubleshooting wizard to recover. 

I am done trying to get this working, it is being sent back to Amazon today. 

Thanks a lot to all the support folks trying to help, appreciate it. However, please advise your hardware folks to stop making garbage NICs/Drivers. 

@Col777, @Havris  I experienced drop also in my pings since I recieved the adapter using the TP-Link drivers. I fixed it by installing these driver "Archer T3U_beta_U2_U3_5G unstable issue_1030.22.0202.2018" (https://static.tp-link.com/2019/201911/20191128/Archer T3U_beta_U2_U3_5G unstable issue_1030.22.0202.2018.zip) from this post https://community.tp-link.com/en/home/forum/topic/204222#topic-reply-432680

test bench: "iperf -s" on router, "iperf -c <server ip> -R -t 60 -P 2" on the tested client (-P 2: is for the # of MU-MIMO stream used)

Here are the results: no more 2+secs pings, no more timeout

Sys info

laptop: 2012 asus n76vz built in wireless n(disabled) w/ t3u adapter

router: asus rt-ax58u 2.4GHz disabled, 80MHz, MU-MIMO, 802,11ax active

Cheers

@pluque Hello, but when i watch to the screen which you made i see driver version 1030.38.0712.2019. but when i install the driver which you post i have this version 1030.22.0202.2018 with which it is not working. Thanks for reply

@pluque i have to try a lot of drivers, but without any reason, so i will try reinstall windows and if it not will work i will give the WIFI to the trash.

@Col777 

Hello, same problem , pinging  local addrees I've many time delay (driver version: 1030.29.618.2019, driver date: 04/09/2019

@egscreen 

Good day.

Thank you for your time and patience.

Have you tried the following driver before:

For USB Wireless Adapter:

https://static.tp-link.com/2020/202006/20200608/1160648_0521_RTLWlanU_WindowsDriver_41_RegFastDMSWPeriod.zip

Note: before installing, you might need to disable the driver sign as below link:

https://community.tp-link.com/en/home/stories/detail/383

by the way, how long have you had the Archer T3U and when did the issue start？

Thanks a lot.

@Kathy_Z 

Hi,

I bought TP-LINK AC1300 Archer T3U Plus to to connect in 5ghz band. I am facing same issues as others.

I see high ping times ( tries 8.8.8.8) or request time at regular intervals.

When i set to use in  "ac" mode, After ~10 good pings (~14ms), there is one ping with ~ 3 seconds !!, Some times there is request timeout. This keeps happening.

I notices that i don't see this issue when using T3U in "b" and "g" mode (2.4ghz), this is useless as i already have 2.4ghz wifi dongles and they work good.

I tried with the realtek driver you suggested, I still see same issue. is there a fix for this issue? 

Note that I am using it with archer C6 router.

Regards

SrinivasS