I just purchased this awesome little usb wireless N adapter for about $20 after tax.
I noticed when I installed the drivers and the managing software every thing worked accordingly thing my network was on channel 11n and the drivers installed perfectly for my copy of Windows 7 32 bit.
I noticed after around 10 minutes or so the wireless adapter would shut it self off. I googled around for a while looking at windows 7 power settings or security settings to use if that was triggering the device and no result.
On the other hand I tried this soultion and now my internet is always on and working with no problems.
So here's my fix for WN822N Users on Windows 7.
1. Start you're computer, make sure you have the latest drivers for the WN822N.
2. Have the TP-Link Control Panel Up and ready, also open up you're network adapters page.
3. You will not have to set custom ip's I don't recommend it.
4. In the TP-Link Control Panel Enable in the "Advanced" Section Soft AP Mode. It basically creates a virtual wireless point and make sure to select the wireless device as the WN822N TP-Link.
5. Fill in a fake ssid and password WPA2,AES.
6. Now Windows 7 is actually the one causing this and you can't fix it to stop it, You have to make sure you're Wireless Device 1# Is connected to you're actual SSID and have the other one disabled until you see a stable connection made. Proceed to Re-Enable you're Soft AP Wireless Device in the Windows 7 Adapter settings.
7. If you notice it says "Recognizing for a long time" And you still have internet just exit out and you should have it work perm.
I don't have a perm fix soultion for this, but for each time you restart you have to do this quick step, I've seen some have this problem with this particular adapter on some forums. Any questions I might be able to answer. Enjoy.