[UFO Chicago] weird wireless problem
inkblot at movealong.org
Mon Dec 6 23:16:06 CST 2004
I cannot believe Brian Sobolak said this on the ENTARNET:
> Nate Riffe wrote:
> >So like I said, it's some kind of selective packet loss over the
> >wireless, and I am at a total loss as to what might cause that and how
> >to make it go away. Can anyone help me?
> Two things I found, don't know if this applies in your situation:
> 1) If you have a wireless phone of a certain frequency, it can mess with
> the wireless.
I do not have any cordless phones, but my neighbors probably do. If
that were the problem, I would expect it to affect all wireless
traffic, and not traffic to specific IP addresses.
> 2) When I had two machines on a switch connected to a wireless bridge, I
> had absolutely jackshit work. I never was able to isolate what went
> wrong, but surmised having a 10Mbs and 100Mbs on the same segment was
> causing problems. It seemed like the bridge (I had a Dlink I think)
> wanted to be set up solely for a single machine, not service a workgroup.
The Netgear WGE101 can bridge a hubfull. That was one of the reasons
I picked it.
> Have you tried seeing what the throughput between the two computers
> connected to the hub is, just to make sure the hub isn't causing the
> problems before it even bubbles up to the wireless?
The hub on the desk is a known good. It's been there for ages and
never caused any trouble before. Also, everything on the desk is
> I don't know if you have the equipment to do this, but you might try
> only one or the other computer at a time too.
Same problem. Specific parts of the Internet are not accessible from
the desk and it doesn't matter which machine I try.
> Just some ideas..... report back (perhaps with machine names and IPs
> so we can keep it straight?)
The NAT box is spk0-arb0.arb0.movealong.org, publicly reachable as
spk0-arb0.movealong.org. The two machines on the desk are maverick
and wayne. My laptop, currently wired into the closet is sausage.
Everything works fine from sausage. All LAN and some non-LAN traffic
works from maverick and/or wayne. The non-LAN traffic which works
does so consistently and reliably. The non-LAN traffic which does not
work fails consistently and reliably. The failing traffic never
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pub 1024D/05A058E0 2002-03-07 Nate Riffe (06-Mar-2002) <inkblot at movealong.org>
Key fingerprint = 0DAC F5CB D182 3165 D757 C466 CD42 12A8 05A0 58E0
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