On Fri, May 11, 2007 at 09:09:32AM +0100, Plant, Dean wrote: > I don't think this is a issue with CentOS/RHEL. The kickstart in this > instance is passing through a firewall appliance, which I think is > Open/FreeBSD based and we now believe is breaking tcp window scaling. It > seems that CentOS3&4 was unaffected by this but with v5 network > connections hang after transferring about 500k. On a network that does > not pass through this firewall v5 works as expected. Ah. Well, to partially confirm; did a CentOS 5 install via NFS yesterday. Would have passed through Cisco and Checkpoint routers / firewalls. No issues. Ray