Hi Amos, > Start with figuring out which server is failing. Your Squid access.log > entry for the request should contain the IP address of the server which > was contacted to fetch the response. > > Read Error means the connection got setup at the TCP level but then no > data packets for that connection got through. Usually PMTU black hole > problems, Window Scaling problems, ECN problems. TCP and ICMP level > things like that breaking the packet management. Yap, updated the Kernel, as I need for other reasons and now working! Thanks for the explanation! Jorge,