About a week ago connectivity to shared Macs (Bonjour) in the Finder became slow or failed with server connection failure error messages. We all run Snow Leopard except two older machines which run Tiger. Of course the two Tiger machines shares are immediately connectable. Although they also cannot connect to any of the Macs running Snow Leopard. I have tried the usual. Go-> Connect to server afp://hostname.local and Go-> Connect to server afp://host_ip_address.local. Same error message. Can ping hostname.local from Terminal screen. Have checked that the hostnames do match the ip addresses as we do have an issue here with name resolution on the corporate (windows 2003) network. They recently migrated the dns servers and created new .local networks. I have noted that that our hostanmes dns records are not correct (wrong ip addresses). This is because our Macs are not binded to the Ad domain and therefore cannot update their own dns records when they receive a new ip address from the dhcp server. See http://anothersysadmin.wordpress.com/2007/10/25/windows-2003-dhcpdns-server-and-non-windows-clients/ for solution. However this should not affect Bonjour? My understanding was that Bonjour effectively established a local network on 169.254/16 and used broadcast discovery. Unless there has been a change between the way Tiger implemented Bonjour and Snow Leopard. Any help would be greatly appreciated.