Connection Reset in Firefox but not other browsers

[holomorph]

I've tried this on two different computers, one at home, one at work, both running Fiesty. When I try to visit http://www.mdsplus.org/ in firefox I get a connection reset error page :

The connection was reset The connection to the server was reset while the page was loading. * The site could be temporarily unavailable or too busy. Try again in a few moments. * If you are unable to load any pages, check your computer's network connection. * If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the Web.

But, using other computers here at work, which run windows or gentoo and firefox, they have no problem accessing the site. Also, if I use a different browser (eg dillo) I also have no problem reaching the site from my Ubuntu box. So it's something specific to the way firefox in Fiesty is configured, but I don't know what the problem could be. Any ideas?

- Bjørn

[holomorph]

further testing indicates it's not specific to firefox. So far Firefox, Epiphany, and Galeon get the connection reset, while Dillo, w3m, and lyx do not.

obviously, this has me stumped.

[NeTo]

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[NeTo]

This post could be related to an Ubuntu bug filed at: https://bugs.launchpad.net/ubuntu/+s...20/+bug/89160/
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I had the exact same problem with several other sites, and found a solution at this thread.

Basically, you can try writing in a root terminal:

echo "4096 16384 131072" > /proc/sys/net/ipv4/tcp_wmem
echo "4096 87380 174760" > /proc/sys/net/ipv4/tcp_rmem

If that solves the problem, you can make the changes permanent, adding the following to /etc/sysctl.conf :

net.ipv4.tcp_wmem = 4096 16384 131072
net.ipv4.tcp_rmem = 4096 87380 174760

You can find about what's behind this issue in http://lwn.net/Articles/92727/ and http://inodes.org/blog/2006/09/06/tc...d-kernel-2617/

[holomorph]

thanks for the links, I learned a little bit, but unfortunately it did not fix my problem

I guess now that I think about it I'm not too surprised, since Dillo, w3m, lyx, and wget all seem to have no issue connecting to that server, but firefox, epiphany and Galeon do have issues. I wish I knew what the difference was.

[NeTo]

Originally Posted by holomorph thanks for the links, I learned a little bit, but unfortunately it did not fix my problem I guess now that I think about it I'm not too surprised, since Dillo, w3m, lyx, and wget all seem to have no issue connecting to that server, but firefox, epiphany and Galeon do have issues. I wish I knew what the difference was.

Sorry, I depicted it as the "same issue" because i wasn't able to load those exact pages (although other loaded just fine). I guess there are more changes in Feisty than the TCP Window Scaling.

Have you tried disabling IPv6 support in Firefox?

[holomorph]

yea, I tried disabling ipv6 too, but it didn't make a difference.

[obenauer]

I'm having the same problem as holomorph. Just installed Feisty Fawn today, and Firefox doesn't see any web pages, but Konqueror does (which is how I'm writing this). I too am surprised others haven't had this problem.

[holomorph]

I think your problem is different from mine: I can see almost any web page in firefox, it's just the mdsplus.org site that's giving me trouble.

[obenauer]

I found a bizarre but effective solution at this link:

https://bugs.launchpad.net/ubuntu/+s...fox/+bug/95241

Type about:config in the address bar to get to Firefox's settings, right-click on general.useragent.extra.firefoxComment, and change its value from "(Ubuntu-feisty)" to just "(Ubuntu)". Then close and restart the browser. After that, I was able to go to any web page in Firefox.

I can't imagine why this would work, but it did.

Note: I just saw your reply that we may not have the same problem, so I don't know if this will help.