I have three different QVS installed: V11 running in http, V11 running in https, V10 running in http. Small Business Licenses. The first two cases have IIS as webserver, the third one has QVWS. All three have NTLM authentication.
Very simple problem for all three: they run with Chrome and IE, they don't run with Firefox and Safari. (Big problem for people using IPAD).
Safari asks me authentication to server port 80, I give the right user and password and I am able to reach access point authentication. At this point I give the right user and pwd, but it tell me "Login Failed".
Firefox ask me the same server authentication, but giving the right user and pwd it still ask me user and pwd.
Chrome and IE work perfectly with same user.