On Fri, 2006-08-25 at 14:25 +0100, Emily Flynn wrote: > ntlm auth [3032] sending 'BH can't obtain challenge' to squid > authenticateNTLMHandleReply: Error obtaining challenge from helper: 00D9440 > error returned 'BH can't obtain challenge' Squid ntlm_auth could not contact your Windows domain server. I would recommend upgrading to Samba-3 with Samba ntlm_auth instead of the now obsolete Samba-2 + Squid ntlm_auth setup... Regards Henrik