Comment 3 for bug 313218

network is configured by network manager as open (no encryption ) network is wired with a belkin f5d7230-4 router and mororola cable modem , ISP is comcast (us) , system is jaunty ,currently instaled with daily alternate amd64 destop dated dec 31 08. I can tell ipv6 is the problem because prior to kernel 2.6.28-4 with ipv6 disabled, website access was fast and loading was fast and smooth, with ipv6 enabled there was a long delay >10sec accessing any web page and loading was slow and choppy ( burst of data pause burst of data pause .... finaly loads) this was evident in all browsers FF 3.05,3.1 (PPA),3.2 (ppa) , Opera 64bit 9.62 and 10 beta (builds 4103 and 4116) , epiphany , dillo, seamonkey and galeon . connecting to a different network (wireless) with a different router the problem dissapears , connecting with the original network with out the router and connected directly to the cable modem the problem dissapears , these results are duplicated with another system running ubuntu 8.04 (lts) upto date . In my case it appears to be the router that is the bottleneck but there are reports in the forums and elsewhere about the same thing with noncompliant ISPs . You will not be able to duplicate this problem unless you have a noncompliant router or ISP , please feel free to request any tests I can perform for you .