@SrinivasS 

Good day,

Thank you very much for your time and patience.

For the home router, is it Archer C6 (EU )V2?

If yes, please have a check of the message box.

Thanks a lot.

@Kathy_Z 

Hi Kathy!

I am having trouble with this adapter as well. 

My config is :

 - Windows 10 with latest update

 - Latest driver from the official website 

2.4Ghz mode works fine but having connection issues using 5Ghz mode (ac only). Tried it in ubs 2.0 and 3.0 as well, 2.0 looks better but still not perfect.

Also I am using an Archer C6 (eu ver2) rooter. 

@Aky82Hun 

Hello, thanks for asking.

I have sent you a PM, please check and respond, good day.

@Col777 I have the same problem since I bought the T3u.

The only solution I found that really worked for me is going into your CMD as administrator and type:

netsh wlan set autoconfig enabled=no interface="Wi-Fi"
 

It blocks all the other Wi-Fi around you and my ping is very stable after I do this.

The only annoying part is, is when you start your pc/laptop again you have to enable it again and than disable it again manual in CMD. Otherwise it wont find any Wifi, including your own.

netsh wlan set autoconfig enabled=yes interface="Wi-Fi"

It doesnt seem like much work which it isnt. But it gets a little bit annoying to do this everytime you restart your pc.

If someone else knows an better solution, please let me know. :)

Best of luck everybody!

@Millencolin 

I just register to say this is only correct answer on Win10 (latest version).

I've tried all drivers (beta, unsigned, only ac...). Nothing work.

Tried this command and now it works (with any driver, any mode).

@tplink

FIX this issue... it's getting annoying to type command everytime!

I solve this problem very easy, sold this adapter and buy from different brand. 

@Kathy_Z could you send me the new driver? It's really impossible to work like this, why do you release this product with this poor performance.