I have exactly the same problem, with the same router, ans also same version (TL-WR841N version 8). It worked perfectly on my notebook when I had Winodows 8, and since I upgraded to Windows 8.1,...

Region : Others Model : TL-WR841N Hardware Version : V8 Firmware Version : ISP : Hi, I have a strange and problematic wifi connection issue: My TP-Link is wired to my wi-fi box provider. I only have...