When authenticating against samba we have moments of traffic where the average response time for the ntlm_auth is 26 seconds instead of milliseconds and users requests start queuing up, and then it clears. In test we have set up a configuration like this: auth_param ntlm program /opt/samba/bin/ntlm_auth --helper-protocol=squid-2.5-ntlmssp auth_param ntlm children 1 #Testing Only. #auth_param ntlm children 100 #Actual Production Setting. auth_param basic program /opt/samba/bin/ntlm_auth --helper-protocol=squid-2.5-basic auth_param basic children 10 auth_param basic realm Squid proxy-caching web server auth_param basic credentialsttl 2 hours #Default: #authenticate_cache_garbage_interval 1 hours #Default: #authenticate_ttl 1 hours Yet when one users goes to cnn the number of lines in the access logs increases by over 200 lines which is expected, and the number of requests in the cache manager NTLM authenticator stats increase by 20 some requests, not what I am looking for. Is there a way to have it so once a user authenticates the credentials will be stored and won't need the ntlm helper for a set time. Or is there something else that we are doing wrong that would be causing us problems in production right now we have 100 ntlm children. Thank you, Brian