Hi, I have been running squid, dansguardian and ntlm_authentication for about 2 months now with no problem. This morning it stopped working. I can no longer surf and I get login pop ups on my window clients. On the squid server I can see the domain and its users so I am connected. My cache.log is showing a lot of stuff but most of it is greek to me. Here is a snippet.... http://pastebin.com/YryKkC0J Any ideas? Thanks Eric Vanderveer