Hi!! I have installed Squid 3.0 STABLE1 in UBUNTU since a few months ago, and I tried to use the delay_pool with a fixed speed without any problems. Now, I want to let the user to download at more speed in the launch hour, so I put others delay_pool for that time and a different speed for the page that not contain the restriction, but I can see when the connection starts at this time, and the lunch it's over the speed do not decrease. I think it's that the connection established can't be modified, but I hope squid do not work like this. Here I send part of my squid.conf. acl special_client src 192.168.0.10/32 acl client src 192.168.0.20/32 #page control are page like megaupload, hotfile, an others acl page_control url_regex -i "/etc/squid3/page_control" #ext_control are extension like .rar .iso, and many others acl ext_control url_regex -i "/etc/squid3/ext_control" acl happy_hours time MTWHFA 12:00-13:30 delay_pool 4 delay_class 1 1 delay_parameters 1 51200/51200 delay_access 1 allow special_client page_control happy_hours delay_access 1 allow special_client ext_control happy_hours delay_access deny all delay_class 2 1 delay_parameters 2 30000/30000 delay_access 2 allow client page_control happy_hours delay_access 2 allow client ext_control happy_hours delay_access 2 deny all delay_class 3 1 delay_parameters 3 90000/90000 delay_access 3 allow client page_control !happy_hours delay_access 3 allow special_client ext_control !happy_hours delay_access 3 deny all delay_class 4 1 delay_parameters 4 1200000/1200000 delay_access 4 allow client !page_control !ext_control delay_access 4 allow special_client !page_control !ext_control delay_access 4 deny all Waiting for your answer !!!