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Re: New guy question: msg#00122

hardware.voyetra.audiotron

Subject: Re: New guy question

Wow, thanks for all the respones.

here's the network setups I've tried:
2 pc's hard wired into a Linksys WRT54G wirelessG router (1 of which is the
music server.)
1 laptop with Airport Extreme card (wireles g)

and then either
AT hardwired to Dlink DWL G810 wirelessG bridge (perfect playing of music, no
access to web interface, or ping, even when music not playing. Static IP on AT)
-or-
AT hardwired into Linksys wirelessB router with burned out wireless chip (and
wireless disabled anyway, just in case) which is then wired to Dlink bridge
(occasional connectivity between AT and music server, good connectivity btwn AT
and other laptop with wireless turned off hardwired into same router as AT.
also good connectivity btwn said laptop and music server. Tried both STATIC
and dynamic IP - no difference)
-or-
AT hardwired into 3com switch (hub?) which is hardwired to dlink bridge.
(didn't pursue this one much, thought it was bad switch)

I do have 2.4Ghz phones, so I set up my home wireless to be on channel 11 to
avoid as much overlap as possible. The laptop has not had any trouble with the
wireless network to date. It also always has 3 of 4 bars in it's little signal
strength meter. I do not see any other wireless networks from it either (which
only meand they aren't broadcasting their SSID's, but knowing my neighbors, I
doubt they have wireless access points)

The only problem with running it wired is that I'd have run a cable from
crawlspace to attic, which, while certainly possible, is a pain in the hinder :)

So far it seems like the combination of AT and wireless bridge that makes
things act wierd.

Thanks for all the info/suggestions so far, folks!
>
> From: "Jay A. Kreibich" <jak@xxxxxxxx>
> Date: 2004/03/16 Tue AM 11:57:43 EST
> To: AUDIOTRON@xxxxxxxxxxxxxxxxxxxx
> Subject: Re: [AT] New guy question
>
> On Tue, Mar 16, 2004 at 11:13:38AM -0500, Jon Harmer scratched on the wall:
> > I apologize if this is an oft-asked question, I've poked around the
> > manual and the AT site some, and haven't found anything about this:
> >
> > Are the interfaces in the Audiotron supposed to be half duplex?
>
> The interface on the AT is 10-base-T only. Although the standards
> allow you to run 10-base-T at full duplex, 10Mb-only chips that
> support this are fairly rare.
>
> On the other hand, chips that support both 10-base-T and 100-base-TX
> (and perhaps 1000-base-T) almost universally support full-duplex at
> all speeds. Unfortunately, the AT does not have one of these.
>
> > I think mine is showing up that way, and it is acting strangely when
> > hooked up to my DLink wirelessG bridge.
>
> Wireless connections have a huge amount of overhead and are
> inherently half-duplex since they are all-- literally-- broadcast
> traffic. 802.11g also suffers from greatly degraded performance in
> the presence of even a single 802.11b client (I don't know if that
> is an issue in this case or not). Wireless-to-wireless connections
> (for example AT w/ Bridge <-> wireless laptop via an access point)
> have twice the overhead (and bandwidth usage) of wireless-to-wired
> connections (for example, AT w/ Bridge <-> Access Point <-> computer
> via wired network). This all adds up to very little extra room in
> the pipe and packet stutter.
>
> I would strongly recommend you use a wired network to feed your AT if
> at all possible. If this is impossible (and you have an 802.11g access
> point) be sure there are no 802.11b clients (other bridges or wireless
> NICs in laptops and/or desktops, neighbor's machines). Look for
> problem areas like microwaves and 2.4GHz cordless phones. Try to
> have your music server on the wired side of things, not as another
> wireless machine. Turn up the buffer on the AT.
>
> Even with these precautions, WAV files can still be tricky. It
> depends a lot on your signal strength to the bridge and what your
> neighbors are doing at those frequencies.
>
> -j
>
> --
> Jay A. Kreibich | Integration & Software Eng.
> jak@xxxxxxxx | Campus IT & Edu. Svcs.
> <http://www.uiuc.edu/~jak> | University of Illinois at U/C
>
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