I have Windows 8.1 64bit and CNTLM version 0.92.3. It was working perfectly on my machine before it stopped working 1 week ago.
The service still starts correctly but when I use CNTLM proxy this message shows up in Firefox:
The proxy moz-proxy://localhost:3128 is requesting a username and password. The site says: "Cntlm for parent"
What could the problem be? I have not changed any settings in cntlm.ini. It is still in the same state when it was working.