Hello,

It drops the connection usually within 1 minute of starting a download. Uploads seem to be fine, as I've tried to upload multiple videos to youtube and no trouble occurred.

As I said, everytime I start a download, particularly using p2p connections. Sometimes it'll drop using direct downloads as well, but this is rare.

When it drops, I can see the adapter under device manager. It behaves as though I had disconnected it from the usb port. It'll stay disconnected for about 5-10 seconds and reconnect itself immediately after. However, when it does reconnect, I still won't have internet access and have to run the windows troubleshooter diagnostics program, which successfully connects me back to the internet with this report - https://i.imgur.com/Yo4wDIL.png and this log file https://pastebin.com/rZajTFaQ. Additionally, under device manager, TP-Link Wireless USB Adapter will say this under description

"This device is not working properly because Windows cannot load the drivers required for this device. (Code 31)

Object Name already exists."
 

Wireless signal strength is maxed out. The computer is maybe 10-20m away from the router, literally in the next division.

I've had it drop once while simply web browsing. But I couldn't pin point what the cause was, as I wasn't downloading anything.

I have a 721n and yes it does drop the connection on windows 10. That is why I bought the 821n, because it had official drivers and windows 10 support.

I installed the driver through the website https://www.tp-link.com/us/support/download/tl-wn821n/

I have installed the Realtek chipset driver, it did not solve the issue.

Try reloading the drivers for it via device manager/ network adapters and right click the 821n or what it comes up as. Update driver but use browse for drivers then use the let me  pick from a list option. Then choose the Have Disk button and wait for the pop up box then ignore everything in there but the browse button. Choose that then navigate to where you have it's drivers stored. It helped me, it might help you.

Hey, I have tried that. didn't solve it. I managed to solve the problem by going to Device Manager -> TP-Link Wireless USB Adapter Properties -> Advanced -> WiFi Config and switching it to WiFi instead of Performance. By the way, just as a curiosity, what driver version or date do you have installed? I'll try it anyway.

I'm using  the tl-wn821n v3 usb adapter and it's old, i think i bought it back in 2013. That's how old it is lmao. The only driver for it that works for it on win 10 home 1903 is the win8 beta version which states it was created in 2012. I was running win 7 when it started to have throttling and restart problems and I had a usb 3 problem. I thought the usb 3 problem was due to my pc being a dinosaur. It gave me bsods whenever i put the adapter in it. So I sent off a memory dump to the Microsoft community and they looked at it and said it was arthx.dl. The adapter driver. 1 guy said load it from device manager. I did what he said but just ran it under update driver and windows said it has the proper driver installed. That's when i went around it. 

I had uninstalled the driver and rebooted before reinstalling the win beta drivers. That's when my adapter started working again in that usb 3 port again. I put it under download stress by using utorrent which would usually start throttling back the adapter when speeds got up. They got up to 4 mbps and since it's an old pc it's only on 2.4 ghz. Usually it would go hard out, the led light flashing like mad then slow down or freeze or just turn off and hopefully restart. Sometimes it didn't requiring a reinsert. So for it's age and network speeds it hasn't throttled back or frozen. I had looked around like a mad fish for the last 2 weeks. Installed, uninstalled different versions except installing the way i told you to try.

Sheut, i was even thinking my isp was deliberately throttling the adapter back somehow since i use utorrent and speeds did drop a little during the download. Hasn't dropped or frozen or throttled back since reinstalling. I really should put it under a big download to see how it goes but a 12 gig download worked fine for my speed. Averaging 3 mbps to 4 mbps.

For some reason this reply won't let me paste the driver link but it's on this site in their down loads.

@Sentinel1916 

Just wanted to update this by saying that I managed to solve the problem by repeatedly installing drivers until the option "WiFi Config" is exposed. This option is in Device Manager --> TP-Link Wireless USB Adapter --> Advanced. WiFi Config has to be set to WiFI instead of Performance for the problem to be fixed.

One little problem though, I don't know how to reliably expose this option. Sometimes reinstalling the same driver exposes it, sometimes installing a different version will expose it. Currently I'm on the latest stable version available on the website and it's exposed (TL-WN821N_EUUS_V6_181023_Win).