TP-Link AC1900 High Gain Wireless Dual Band USB Adapter for PC, Desktop, Laptop and Tablet (Supports Windows XP/7/8/8.1/10/11, OS X (10.9–10.13), Beamforming Technology, WPS Button) (Archer T9UH)

There no issue faced.

I was struggling with low download/upload speeds, unstable latency and low coverage signals but the Archer T9UH fixed all that in an instant! Now I am able to connect to my 5GHz with full coverage signals thus having achieving high internet speeds. But the best part about the T9UH is the latency, compared to its competitors the T9UH is known to have a stable low latency at all internet speeds. In my usage I have not had any sudden internet speed drops if there will be its little to none. For the customers complaining about this product, I suggest installing the default windows driver for the T9UH (meaning its basically plug-n-play). Don't install the TP-LINK driver as you will get lower internet speed results. From my experience compared to AC1900s of Netgear and Asus, the T9UH overall is the best pick.

Does not work as well as T4UH. When you plug it into a Laptop and installing the necessary software, The blue light on steady does not blink like the other adaptors I have.

I bought this item to add wi-fi capabilities to an upstairs desktop PC. I could have gone for a cheap £5 dongle but decided it was worth paying for a much better product with potentially superior aerial reception. I have not been disappointed. The size and positionability of this adapter means it is able to pick up a strong and stable wi-fi connection from downstairs. This is an attractive product that I found extremely easy to set up - a good example of plug and play. It is currently attached to the USB3 port on a Windows 10 Professional PC and is steadily and reliably picking up a 5G signal from our downstairs Virgin router (2G also available). For good measure I did update the drivers as suggested by many reviewers here. One month after purchase and this adapter is still performing faultlessly so we are delighted with the outcome as it appears to solve a long standing connectivity issue (using wall plugs) that we have been putting up with for years.

Wird benötigt, um meinen PC mit dem W-Lan hinter einer dicken Wand zu erreichen. Das klappt ganz gut. Er wird aber wirklich etwas heiß im Betrieb.

Fantastic adapter, fast and reliable. I had one of the main competitors, the ASUS USB-AC68 Dual-Band Wireless AC1900 USB Adapter. That last turned out to be unreliable: after three months it would disconnect every day, often several times a day and of course always when I was in the middle of loading something important! The TP Link is faster (Ping = 1ms vs 13ms, download = 23MB vs 21, upload = 1.70MB vs 1.30MB. The ping in particular is much better). The adapter is heavier and seems better built. I had downloaded the drivers directly from the TP Link website. These installed but the adapter was not recognised by my PC (running windows 7). I reinstalled from the CD and this time the adapter was recognised. However it would not connect from the router from the TP Utilities (would not recognise the password). But when I connected it directly from the Windows task bar everything was fine. So in short: plug adapter in, ignore the message that tells you it is ready to use (it is not!), install drivers using CD, then once the adapter has appeared in the status bar, just click on that, choose your router, enter your password and connect (or use WPS). Then you're off to an excellent ride.

The AC1900 Archer was a plug-and-play instant improvement to my internet connection, and gave me stable internet for online gaming – I had previously been blaming my internet service provider (ISP). I have been using an older TP Link (TL-WN821N) for years; it’s 300mbps and only operates on the 2.4Ghz channels (that frequency important to note). If you are using 2.4Ghz, either due to your modem or current adapter, then you probably are getting interference from an overused frequency, and upgrading to 5Ghz via a dual channel like the Archer will improve your connection (including downloads speeds, but more so latency/ping). Obviously wired connection with an ethernet is always the best option; yet, if you cannot run cables to your computer and must use a Wi-Fi adapter, then get a dual channel (it can use either 2.4Ghz or 5Ghz). Check that you have a dual channel router too; for example, I use a BT home hub which has dual channel. Using BT, I did not need to change any modem settings, but you might with other routers. Installation: with Windows 10 I was able to plug-and-play; however, I did not have full download speed in a speed test until I downloaded the drivers from TP-Link website. A CD is provided to install drivers, or you can alternatively use their website. It has about a 1-meter cable length. It has some other bells and whistles, such as ‘beamforming’, but I believe the dual channel is the main feature. This specific device is a little more towards the high end and you can get more affordable dual channel adapters. It is a more expensive high-quality option, and TP link themselves have alternative products. USP 3.0, 600 + 1300 Mbps, and all these other somewhat overpowered capabilities are for most people, not something you need to pay attention to. If you like how it looks, and you want a solid connection on the 5Ghz frequency, with a bit of future proofing, then grab this. It about ½ width of a standard mobile and around an inch more in length; so it’s quite large, and should exclusively be used with the dock that comes provided – it’s pretty big. **It can be important to check other variables in your connection, such as ISP service, before assuming your current hardware setup is the issue. There is a website, thinkbroadband, where you can set up a free broadband quality monitor. It will measure your latency/ping continually day after day, and you will be able to diagnose if you have bad service. I mention this for those who play online games where you need stability (i.e. a ping of 40±10ms) rather than ‘speed’, which can seemingly transfer at X Mbps but you have a chaotic ping ranging from 30ms to 120ms**