[Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
** Changed in: linux (Debian) Status: New = Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/89160 Title: Cannot connect to router/server/proxy with bad TCP Wscale implementation To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/89160/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
This bug was filed against a series that is no longer supported and so is being marked as Won't Fix. If this issue still exists in a supported series, please file a new bug. This change has been made by an automated script, maintained by the Ubuntu Kernel Team. ** Changed in: linux (Ubuntu) Status: Confirmed = Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/89160 Title: Cannot connect to router/server/proxy with bad TCP Wscale implementation To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/89160/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
I has been solved by me. After checking my firewall I noticed it was complaining about a syn flood when I was unable to connect to a website. In my setup at home this firewall is not really needed so I turned it off. All the problems are gone since that moment. So, obviously Ubuntu makes my firewall thinks there is a synflood where it is just a normal TCP attempt. Next step is to check why my firewall is blocking this, but since it is build into my DSL modem, managed by my telecom provider it will be hard to correct this (my modem is a Siemens SX552 WLAN dsl modem). -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
Still present in karmik alpha 2 live cd. As said above, the problem is not in Linux/Ubuntu, but in some routers. However for a novice, this is a big problem, difficult to understand, and is perceived as a Linux/Ubuntu bug. A workaround would be very useful. -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
I have noticed this problem for a few months and finally tracked down this bug report. Doing echo 4096 65536 65536 /proc/sys/net/ipv4/tcp_rmem did resolve it for me. Please let me know if there is any thing else you need. -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
I have had the same problem here. I do not know when it started exactly (it wasn't the when I first installed Ubuntu but suddenly some websites (like google maps) started to display half maps. Then I was able to pinpoint to a problem with wireshark. First I added the line net.ipv4.tcp_window_scaling = 0 to sysctl. the was better but not gone. Then I also added net.ipv4.tcp_wmem = 4096 16384 131072 and net.ipv4.tcp_rmem = 4096 87380 174760. Now all is forking fine again. If it helps I can put requested info below, just let me know what I can do. What is of more interest was that Wireshark saw tcp checksum errors. The exact message was Checksum: 0xaa59 [incorrect, should be 0x2035 (maybe caused by TCP checksum offload?). That is gone now. -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
Well, Having a second look it seems it is not completely gone (actually, the https connection to this website still shows the checksum errors but at least the problem is now not noticeable any more -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
The 18 month support period for Gutsy Gibbon 7.10 has reached its end of life - http://www.ubuntu.com/news/ubuntu-7.10-eol . As a result, we are closing the linux-source-2.6.22 kernel task. It would be helpful if you could test the new Jaunty Jackalope 9.04 release and confirm if this issue remains - http://www.ubuntu.com/getubuntu/releasenotes/904overview. If the issue still exists with the Jaunty release, please update this report by changing the Status of the linux (Ubuntu) task from Incomplete to New. Also please be sure to run the command below which will automatically gather and attach updated debug information to this report. Thanks in advance. apport-collect -p linux-image-2.6.28-11-generic 89160 ** Changed in: linux-source-2.6.22 (Ubuntu) Status: Confirmed = Won't Fix ** Changed in: linux (Ubuntu) Status: Confirmed = Incomplete -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
This bug still exists in Jaunty ** Changed in: linux (Ubuntu) Status: Incomplete = Confirmed -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
@Lionel Ok, please run this command from a Jaunty terminal: apport-collect -p linux-image-2.6.28-11-generic 89160 Thanks in advance. -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
Sergio unfortunately, apport-collect doesn't work behind a proxy -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
The 18 month support period for Feisty Fawn 7.04 has reached it's end of life - http://www.ubuntu.com/news/ubuntu-7.04-end-of-life . As a result we are closing the linux-source-2.6.20 task. However, this will remain open against the actively developed kernel. Thanks. ** Changed in: linux-source-2.6.20 (Ubuntu) Status: Triaged = Won't Fix -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
This bug is not new and -from what i gather- stricty speaking it is not a bug of linux (or Vista) it is a bug with cheap (read crappy) modems/routers, such as my D-Link DSL-502T. It would be nice if they provided us with a firmware upgrade that supports window scaling. Ubuntu 8.04 LTS (Hardy) Live-CD works fine with my D-Link router. At the same time, Ubuntu 8.10 Intrepid fails to connect to, for instance, the LiveJournal website. Workarounds with sysctl.conf suggested above do not help. Please let us know immediately if this newer 2.6.27 kernel resolves the bug reported here or if the issue remains. More importantly, please open a new bug report for each new bug/regression introduced by the 2.6.27 kernel and tag the bug report with 'linux-2.6.27'. Also, please specifically note if the issue does or does not appear in the 2.6.26 kernel. Thanks again, we really appreicate your help and feedback. I confirm this bug for the latest Intrepid version with the linux- image-2.6.27-7-generic package installed. -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
I tried to use the Firestarter application as suggested above, and it worked for me. Then, I saved its configuration files, purged Firestarter, restarted my system, and started to execute the commands from its /etc/firestarter/sysctl-tuning script in sequence, at each step checking wget livejournal.com to work. Executing the first two commands echo 0 /proc/sys/net/ipv4/ip_forward and echo 0 /proc/sys/net/ipv4/conf/all/log_martians did not help, since wget livejournal.com was still hanging. The third command, echo 0 /proc/sys/net/ipv4/tcp_timestamps, made wget livejournal.com working fine. So I have written the only one command net.ipv4.tcp_timestamps = 0 in my /etc/sysctl.conf file and am having the full internet connection, not a connection just to its part limited by google.com and some other sites. I'm suggesting this workaround for this bug until Ubuntu's Linux kernel configuration is corrected - I'm using the latest Ubuntu Intrepid version updated now and this bug is being reproduced here. -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
The Ubuntu Kernel Team is planning to move to the 2.6.27 kernel for the upcoming Intrepid Ibex 8.10 release. As a result, the kernel team would appreciate it if you could please test this newer 2.6.27 Ubuntu kernel. There are one of two ways you should be able to test: 1) If you are comfortable installing packages on your own, the linux- image-2.6.27-* package is currently available for you to install and test. --or-- 2) The upcoming Alpha5 for Intrepid Ibex 8.10 will contain this newer 2.6.27 Ubuntu kernel. Alpha5 is set to be released Thursday Sept 4. Please watch http://www.ubuntu.com/testing for Alpha5 to be announced. You should then be able to test via a LiveCD. Please let us know immediately if this newer 2.6.27 kernel resolves the bug reported here or if the issue remains. More importantly, please open a new bug report for each new bug/regression introduced by the 2.6.27 kernel and tag the bug report with 'linux-2.6.27'. Also, please specifically note if the issue does or does not appear in the 2.6.26 kernel. Thanks again, we really appreicate your help and feedback. ** Tags added: cft-2.6.27 -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
This bug is not new and -from what i gather- stricty speaking it is not a bug of linux (or Vista) it is a bug with cheap (read crappy) modems/routers, such as my D-Link DSL-502T. It would be nice if they provided us with a firmware upgrade that supports window scaling. 2008/8/20 Bug Watch Updater [EMAIL PROTECTED] ** Changed in: linux (Debian) Status: Unknown = New -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a direct subscriber of a duplicate bug. -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
** Also affects: linux (Debian) via http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=401435 Importance: Unknown Status: Unknown -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
** Changed in: linux (Debian) Status: Unknown = New -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
Same problem running Vista Basic OS...Can not surf or use email after Inside Windows installation with ADSL modem and router attached. Also on Ubuntu boot some white screen stuff where it should be black. Acer AMD Athalon with ATI graphics card. -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
Adding the lines net.ipv4.tcp_wmem = 4096 16384 131072 net.ipv4.tcp_rmem = 4096 87380 174760 net.ipv4.tcp_window_scaling=0 and doing a sysctl -p doesn't work for me. Ubuntu 8.04, upgraded from previous release. -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
the error remains into ubuntu 8.04 amd64 2 year!!! with the same shit! again to edit /etc/sysctl.conf to include this line net.ipv4.tcp_window_scaling=0. I´M SICK! -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
Well, my problem was solved with a reset. What I can say... Follow in attachment the last email I sent. ** Attachment added: email-to-buffalo.txt http://launchpadlibrarian.net/13831413/email-to-buffalo.txt -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
My problem was solved when I edited /etc/sysctl.conf and added the following two lines net.ipv4.tcp_wmem = 4096 16384 131072 net.ipv4.tcp_rmem = 4096 87380 174760 This seems a little geeky, and I would hope that the Ubuntu developers somehow address this issue in future releases. (It wasn't a problem in 7.04; appeared in 7.10 and continued in the 8.04 (beta).) On Tue, Apr 22, 2008 at 5:49 PM, linovski [EMAIL PROTECTED] wrote: Well, my problem was solved with a reset. What I can say... Follow in attachment the last email I sent. ** Attachment added: email-to-buffalo.txt http://launchpadlibrarian.net/13831413/email-to-buffalo.txt -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a direct subscriber of a duplicate bug. Status in Source Package linux in Ubuntu: Confirmed Status in Source Package linux-source-2.6.20 in Ubuntu: Triaged Status in Source Package linux-source-2.6.22 in Ubuntu: Confirmed Bug description: From some particular web servers, a machine running feisty cannot get an HTTP response. However, machines running most other OSs can get an HTTP response. (However, the problem appears to affect Debian etch also.) How to reproduce the problem: Use wget or any web browser to try to retrieve the file from this URL: http://www.ureg.ohio-state.edu/ourweb/online.html The client resolves the host, establishes a connection, and sends an HTTP request. However, it receives no response. However, a client on other OSs besides feisty will receive a response. In fact, a machine running dapper can get an HTTP response just fine. Here is the output from wget: *begin transcript* [EMAIL PROTECTED]:~$ wget -d http://www.ureg.ohio-state.edu/ourweb/online.html DEBUG output created by Wget 1.10.2 on linux-gnu. --08:32:45-- http://www.ureg.ohio-state.edu/ourweb/online.html = `online.html' Resolving www.ureg.ohio-state.edu... 128.146.64.104 Caching www.ureg.ohio-state.edu = 128.146.64.104 Connecting to www.ureg.ohio-state.edu|128.146.64.104|:80... connected. Created socket 3. Releasing 0x08093848 (new refcount 1). ---request begin--- GET /ourweb/online.html HTTP/1.0 User-Agent: Wget/1.10.2 Accept: */* Host: www.ureg.ohio-state.edu Connection: Keep-Alive ---request end--- HTTP request sent, awaiting response... Read error (Connection reset by peer) in headers. Closed fd 3 *end transcript* Now here is the output from a machine running Debian sarge: **begin transcript* [sarge machine]$ wget -d http://www.ureg.ohio-state.edu/ourweb/online.html DEBUG output created by Wget 1.9.1 on linux-gnu. --21:41:41-- http://www.ureg.ohio-state.edu/ourweb/online.html = `online.html' Resolving www.ureg.ohio-state.edu... 128.146.64.104 Caching www.ureg.ohio-state.edu = 128.146.64.104 Connecting to www.ureg.ohio-state.edu[128.146.64.104]:80... connected. Created socket 3. Releasing 0x80a60d0 (new refcount 1). ---request begin--- GET /ourweb/online.html HTTP/1.0 User-Agent: Wget/1.9.1 Host: www.ureg.ohio-state.edu Accept: */* Connection: Keep-Alive ---request end--- HTTP request sent, awaiting response... HTTP/1.1 200 OK Content-Length: 17686 Content-Type: text/html Last-Modified: Fri, 15 Sep 2006 12:22:14 GMT Accept-Ranges: bytes ETag: 3938fd93c1d8c61:91210 Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET Date: Thu, 01 Mar 2007 02:41:40 GMT Connection: keep-alive Length: 17,686 [text/html] 100%[] 17,686 105.31K/s 21:41:41 (105.28 KB/s) - `online.html' saved [17686/17686] *end transcript* (Incidentally, the site in question is of some importance since it is used by tens of thousands of students at a major public university.) ProblemType: Bug Date: Fri Mar 2 08:25:43 2007 DistroRelease: Ubuntu 7.04 Uname: Linux ubuntu 2.6.20-8-generic #2 SMP Tue Feb 13 05:18:42 UTC 2007 i686 GNU/Linux ** Attachment added: unnamed http://launchpadlibrarian.net/13831722/unnamed -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
After configure kernel parameters as you had tell sysctl -p kernel.printk = 4 4 1 7 kernel.maps_protect = 1 fs.inotify.max_user_watches = 524288 vm.mmap_min_addr = 65536 net.ipv4.conf.default.rp_filter = 1 net.ipv4.conf.all.rp_filter = 1 net.ipv4.tcp_wmem = 4096 16384 131072 net.ipv4.tcp_rmem = 4096 87380 174760 I still can't load none of the referred pages. The page http://www.ureg.ohio-state.edu/ourweb/online.html referred above load correctly. At my LAN only pcs with msw xp surf correctly the web. Ubuntu, gentoo and msw vista have this issue. -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
Follow wireshark (ethereal) log files of a failed connection using wget to try retrieve skydrive.live.com Relevant frames: 1-42 (Follow in plain text and also a wireshark/tcpdump file to open with the appropriate tools.) Hope you can help me debug this network issue $ cat /proc/sys/net/ipv4/tcp_rmem 409687380 174760 $ cat /proc/sys/net/ipv4/tcp_wmem 409616384 131072 $ cat /proc/sys/net/ipv4/tcp_window_scaling 0 ** Attachment added: wireshark-log.tar.gz http://launchpadlibrarian.net/13559098/wireshark-log.tar.gz -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
Follow wireshark (ethereal) log files of a failed connection using wget to try retrieve skydrive.live.com Relevant frames: 1-42 Follow also current ipv4 configs. (Log files, follow in plain text and also in wireshark/tcpdump format to open with the appropriate tools.) Hope you can help me debug this network issue ** Attachment added: wireshark-log_and_ipv4_configs.tar.gz http://launchpadlibrarian.net/13559206/wireshark-log_and_ipv4_configs.tar.gz -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
The two lines below solved my problem. THANK YOU! On Thu, Apr 17, 2008 at 11:58 PM, Jojo [EMAIL PROTECTED] wrote: Please try = vi /etc/sysctl.conf add the following two lines net.ipv4.tcp_wmem = 4096 16384 131072 net.ipv4.tcp_rmem = 4096 87380 174760 save and reset sysctl sysctl -p === -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a direct subscriber of a duplicate bug. Status in Source Package linux in Ubuntu: Confirmed Status in Source Package linux-source-2.6.20 in Ubuntu: Triaged Status in Source Package linux-source-2.6.22 in Ubuntu: Confirmed Bug description: From some particular web servers, a machine running feisty cannot get an HTTP response. However, machines running most other OSs can get an HTTP response. (However, the problem appears to affect Debian etch also.) How to reproduce the problem: Use wget or any web browser to try to retrieve the file from this URL: http://www.ureg.ohio-state.edu/ourweb/online.html The client resolves the host, establishes a connection, and sends an HTTP request. However, it receives no response. However, a client on other OSs besides feisty will receive a response. In fact, a machine running dapper can get an HTTP response just fine. Here is the output from wget: *begin transcript* [EMAIL PROTECTED]:~$ wget -d http://www.ureg.ohio-state.edu/ourweb/online.html DEBUG output created by Wget 1.10.2 on linux-gnu. --08:32:45-- http://www.ureg.ohio-state.edu/ourweb/online.html = `online.html' Resolving www.ureg.ohio-state.edu... 128.146.64.104 Caching www.ureg.ohio-state.edu = 128.146.64.104 Connecting to www.ureg.ohio-state.edu|128.146.64.104|:80... connected. Created socket 3. Releasing 0x08093848 (new refcount 1). ---request begin--- GET /ourweb/online.html HTTP/1.0 User-Agent: Wget/1.10.2 Accept: */* Host: www.ureg.ohio-state.edu Connection: Keep-Alive ---request end--- HTTP request sent, awaiting response... Read error (Connection reset by peer) in headers. Closed fd 3 *end transcript* Now here is the output from a machine running Debian sarge: **begin transcript* [sarge machine]$ wget -d http://www.ureg.ohio-state.edu/ourweb/online.html DEBUG output created by Wget 1.9.1 on linux-gnu. --21:41:41-- http://www.ureg.ohio-state.edu/ourweb/online.html = `online.html' Resolving www.ureg.ohio-state.edu... 128.146.64.104 Caching www.ureg.ohio-state.edu = 128.146.64.104 Connecting to www.ureg.ohio-state.edu[128.146.64.104]:80... connected. Created socket 3. Releasing 0x80a60d0 (new refcount 1). ---request begin--- GET /ourweb/online.html HTTP/1.0 User-Agent: Wget/1.9.1 Host: www.ureg.ohio-state.edu Accept: */* Connection: Keep-Alive ---request end--- HTTP request sent, awaiting response... HTTP/1.1 200 OK Content-Length: 17686 Content-Type: text/html Last-Modified: Fri, 15 Sep 2006 12:22:14 GMT Accept-Ranges: bytes ETag: 3938fd93c1d8c61:91210 Server: Microsoft-IIS/6.0 X-Powered-By: ASP.NET Date: Thu, 01 Mar 2007 02:41:40 GMT Connection: keep-alive Length: 17,686 [text/html] 100%[] 17,686 105.31K/s 21:41:41 (105.28 KB/s) - `online.html' saved [17686/17686] *end transcript* (Incidentally, the site in question is of some importance since it is used by tens of thousands of students at a major public university.) ProblemType: Bug Date: Fri Mar 2 08:25:43 2007 DistroRelease: Ubuntu 7.04 Uname: Linux ubuntu 2.6.20-8-generic #2 SMP Tue Feb 13 05:18:42 UTC 2007 i686 GNU/Linux ** Attachment added: unnamed http://launchpadlibrarian.net/13571282/unnamed -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
echo 0 /proc/sys/net/ipv4/tcp_window_scaling OR echo 4096 65536 65536 /proc/sys/net/ipv4/tcp_rmem wcho 4096 65536 65536 /proc/sys/net/ipv4/tcp_wmem OR ip route add $THEIR_IP/32 via $MY_GATEWAY window 65535 OR sudo iptables -t mangle -A FORWARD -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu did not resolve my problem. http://www.priberam.pt/dlpo/ or translate.live.com are examples of sites that i can't load. I have a WBMR-G125 (Wireless-G 125* High Speed Broadband ADSL2+ Modem Router) I already report this issue to buffalo. In the mean time, could you give me some directives in order to debug my problem? -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
Please try = vi /etc/sysctl.conf add the following two lines net.ipv4.tcp_wmem = 4096 16384 131072 net.ipv4.tcp_rmem = 4096 87380 174760 save and reset sysctl sysctl -p === -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
As discussed at Bug 209359, this bug also affects Hardy ** Also affects: linux (Ubuntu) Importance: Undecided Status: New ** Changed in: linux (Ubuntu) Assignee: (unassigned) = Ubuntu Kernel Team (ubuntu-kernel-team) Status: New = Confirmed -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 89160] Re: Cannot connect to router/server/proxy with bad TCP Wscale implementation
** Summary changed: - cannot get an HTTP response from some sites + Cannot connect to router/server/proxy with bad TCP Wscale implementation -- Cannot connect to router/server/proxy with bad TCP Wscale implementation https://bugs.launchpad.net/bugs/89160 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
