I take it this problem has never been solved? I have exactly the same issue with nearly all Wifi networks I connect to. The only one that seems to work without issue is my mobile set as a wifi hotspot. Never had this problem with any other device or operating system other than Windows 8. Am amazed Miscrosoft have managed to make the most basic of function so difficult. Resolvable only via cmd!!! i.e. Windows 8 isn't capable.
You assume right... never resolved. I have downloaded Xirrus Wi-Fi Inspector, but am sending my laptop (Asus) in for repair in short time, risking a bill if they find it is a software problem. I have done everything in the book, ran all cmd-prompts, updated every bios and driver available, checked tens of wifi networks in FOUR different countries. I pretty much hate Windows 8 now. Love the computer. Hate Microsoft.