FWIW: I have seen that before at a clients' site where there where lots
of cheap (netgar/3com/dlink) switches improperly daisy-chained. ;)
On Wed, 2010-01-20 at 17:03 +0000, Nigel Rantor wrote:
I have just started working at a new office.
I just re-installed a windows box to have Lenny on it.
The box works fine.
I noticed that my SSH sessions to computers within the company were
hanging, then eventually timing out with a reset by peer message. It is
actually afecting all networking, that's just what made me realise that
the network sometimes "goes away".
No one else is having these problems.
To make progress I bought in my laptop and tried to use that, then
suddenly found the same issue.
I have plugged my laptop into a different port, one next to someone
elses workstation with no effect.
I have since been playing with things, looking through the internet and
playing with ping.
There are no entries in syslog/messages/dmesg about the NIC or network
stack at, or around, the time when the network "disappears".
Basically I lose all connectivity in terms of send/recv but ifconfig
reports that the adapter is up and working.
Both machines are running Lenny. My laptop has been stable for
aaaaaaages, has never had problems with wired ethernet on multiple
networks it's been hooked up to...and is even running a newer kernel to
get some fixes for the wifi driver (not used, I'm on wired ethernet here)
The box I just installed is a beast of a dell server and is using a
vanilla Lenny install from CD with only a base system + Gnome so far.
I have searched the interwebs and found the advice regarding tcp window
scaling, this does not get rid of the problem on my laptop.
I'm having a hard time finding anything that seems relevant to me.
If anyone has seen this, or has an idea where to look I'd appreciate it.
n
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