Hi, ( Sorry about last incomplete message. Stupid keyboard. :-) ) I am using squid-2.5.STABLE11, with all available patchs. I applied the 'Delay pool class 3 fails on clients in network 255 (ip X.X.255.X)' patch. I am not using delay pools class 3, but I like to maintain squid up to date. After the patch, delay pools became weird. My configuration is following. Before patch, when reached 1000000 bytes, downloads were limited do 8000 bytes/s. After the patch, the control started to limit this access do 2.7KB/s. Suddenly it rised to 38KB/s and just few seconds after this it was doing 27KB/s and so. I just restored my old source tree, without the patch, recompiled and delay pools are working fine again. Have I missed something? Maybe a problem with the patch? Thank you for your attention. Regards, Cassio acl labs src 192.168.1.0/24 192.168.2.0/24 ... acl dmz url_regex -i host.domain.name.br delay_pools 2 delay_class 1 2 delay_class 2 1 delay_access 1 allow labs !dmz delay_access 1 deny all delay_access 2 allow dmz delay_access 2 deny all delay_parameters 1 -1/-1 8000/1000000 delay_parameters 2 -1/-1