On Sat, 21 Jan 2006, SainTiss wrote: > However, after I did this both on server and client, nothing changed... Also, > using 2.6.8 on the server doesn't help... That was a guess based on the available info. As you are possibly behind an *DSL line, there might be that someone drops ICMP fragmentation needed packets. Read TCPMSS target in the iptables manpage and add the appropriate rule(s) to the firewall. Another possibility is an ECN hole somewhere between you and the destinations: try disabling TCP ECN on the client and give a try. Best regards, Jozsef - E-mail : kadlec@xxxxxxxxxxxxxxxxx, kadlec@xxxxxxxxxxxxxxx PGP key : http://www.kfki.hu/~kadlec/pgp_public_key.txt Address : KFKI Research Institute for Particle and Nuclear Physics H-1525 Budapest 114, POB. 49, Hungary