Internet woes

[chip33az at netscape.net]

When I installed Ubuntu on a laptop at home, my Internet performance was 
horrible.  I had installed Ubuntu before, but never had any issues.  I 
then installed Etch, same issue, same laptop.  I tried other OS's 
without any success.  I then tried an older version of Debian and it 
worked fine.  I searched Google and found a little blurp about window 
size and routers and the newer kernels.

I don't know if this will help you, but with the machine running, open a 
terminal window, go to root mode and cat 
/proc/sys/net/ipv4/tcp_window_scaling.  If it is set to 1, change it to 
0 with echo "0" > /proc/sys/net/ipv4/tcp_window_scaling.  Close FF and 
try again.

The difference was night and day for me. 

There are a few work arounds, but if this works and you want a permanent 
solution, add "net.ipv4.tcp_window_scaling=0" to /etc/sysctl.conf.

I know there are other settings, but this worked well for me.

Motheaton28 at aol.com wrote:
> Kenneth wrote:
>   
>> --- "Robert N. Eaton" <Motheaton28 at aol.com> wrote:
>>
>>     
>>> In Fedora 7 Thunderbird doesn't connect at all: it times out. Firefox 
>>> connects to a very few sites and doesn't seem to finish the connection, 
>>> no matter how long it tries. Seems like a software problem, but _which_ 
>>> software? SELinux? Firewall?
>>>       
>> When firefox doesn't connect, what does the status bar say it's doing? 
>> looking up host, waiting for reply?
>>
>> What's the output of "ifconfig -a" ?
>>
>>     
> [bob at localhost sbin]$ ./ifconmfig -a
> eth0    Link encap:Ethernet HWaddr 00:05:5D:34:C3:19
>     inet addr:192:168:0:3 Bcast:192:168:0:255 Mask:255:255:255:0            inet6 
> addr fe80::255:5dff:fe34:c319/64 Scope:Link
>     UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
>     RX packets:8 errors:0 dropped:0 overruns:0 frame:0
>     TX packets:57 errors:0 dropped:0 overruns:0 carrier:0
>     collisions:0 txqueuelen:1000
>     RX bytes:2195 (2.1 KB) TX bytes:10602 (10.3 KiB)
>     Interrupt:20 Base address:0x4000
>
> eth1    Link encap:Ethernet HWaddr 00:50:8D:E5:8D:12
>     BROADCAST MULTICAST MTU:1500 Metric:1
>     RX packets:0 errors:0 dropped:0 overruns:0 frame:0
>     TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
>     collisions:0 txqueuelen:1000
>     RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
>     Interrupt:16 Base address:0x8000
>
> lo  Link encap:Local loopback
>     inet addr:127.0.0.1 Mask:255.0.0.0
>     inet6 addr: ::1/128 Scope:Host
>     UP LOOPBACK RUNNING MTU:16436 Metric:1
>     RX packets:10274 errors:0 dropped:0 overruns:0 frame:0
>     TX packets:10274 errors:0 dropped:0 overruns:0 carrier:0
>     collisions:0 txqueuelen:0
>     RX bytes:89837264 (85.6 Mib) TX bytes:89837264 (85.6 MiB)
>
> [bob at localhost sbin]$
>
> If there are any errors, it's my typing.  This is worse than sneakernet; 
> I couldn't figure a protocol to write the ./ifconfig -a output to a 
> floppy and then cut and paste in WinXP Thunderbird. I had to print it 
> out and then reboot into WinXP, open  Thunderbird, type it in by hand, 
> and I'm a lousy typist.
>
> Bob
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