network throughput over a wireless access point is bad for LAN traffic, yet good for internet traffic

[Net Llama!]

On Mon, 19 Jun 2006, David Bandel wrote:
> On 6/19/06, Net Llama! <netllama at linux-sxs.org> wrote:
> > I've got an bunch of 802.11b hardware (wireless access point WAP, pcmcia
> > cards) setup at home, connected to a wired network via a 100Mb Netgear
> > switch.  The same switch is also connected to the border
> > router/NAT/firewall box which goes out to the DSL modem/internet.  I've
> > had this setup for years, and haven't made any changes to it since setting
> > it up originally.
> >
> > Over the past few weeks, I've noticed that all network traffic over the
> > WAP that is local (just on my home LAN) is horribly slow (like 1KB/s
> > slow), yet all traffic over the WAP to/from the internet is fine (about
> > 1.5Mb/s).  I've tried scp/http/nfs and all of them are slow as can be
> > possibly imagined when between LAN systems (both between wireless systems,
> > and between wireless & wired systems). The problem does not exist between
> > wired systems.  There are no errors in dmesg/messages, its just like
> > something is swallowing 99% of the packets.
> >
> > All the systems (wireless and wired) are running FC5-x86, however there
> > are no firewalls or traffic shaping on the LAN,  just on the border
> > router/firewall/NAT box, which is never in the equation except for traffic
> > going to/from the internet (where this problem never appears).
> >
> > Anyone have any troubleshooting suggestions/ideas?
>
> Scan for your neighbors' new AP.  Move at least 4 channels away.

Already did that.  I've been using channel 11 for over 3 years, and all my
neighbors are (sharing) channel 6.

> Better- go to 802.11a (5GHz).

ugh, that costs $$$ that i was hoping not to spend.

>
> And welcome to the wonderful world of wireless.  It will only get worse.

ok, but if i'm already 5 channels away from my neighbors, then isn't the
problem elsewhere?  and would a channel/frequency conflict really exhibit
itself like this?

-- 
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Lonni J Friedman                        netllama at linux-sxs.org
LlamaLand				http://netllama.linux-sxs.org