I fixed this after many times doing this (OS: Win7 32bit): - Uninstall TP-Link drivers (anyone) and software - Restart (cancel any autoscan if Windows try it) - Uninstall Antivirus - Restart -...

I checked the forum and found there are a lot of users with this problem. Please answer to one of us, I think it's the least for TP-Link to fix a well known problem for one of its product.

3 years after you (no necro posting sorry) and I have the same problem... Did you fix it?

Model : Hardware Version : Firmware Version : ISP : Type: 300Mpbs Wireless N PCI Adapter Model: TL-WN851ND OS: Windows 7 Mobo (if it matters): ACER EG31M Just installed (hardware and software) this...