Aironet & Acer don't like channel 1

Let me outline the scenario. A wireless LAN with multiple Cisco
Aironet 350 access points (each in a separate building)

Toshiba 1410 laptops with Cisco Aironet 350 PCMCIA cards (60)
Acer Travelmate 230 laptops with Cisco Aironet 350 PCMCIA cards (10)

Both types of laptop run win2k with sp3

No problems at all with the Toshiba laptops.

Acer laptops work fine on channels 6 and 11. On channel 1 pinging our
servers RTT on pings is about 300ms (using Toshibas <10ms). The
effect is that logging on to the domain takes forever etc Changing
to channel 2 improves matters, channel 3 is better still. Channel 5
onwards RTT is back to normal.

I'd like to emphasise that both laptops run the same OS, service
packs, drivers and these tests have been carried out with toshiba &
acer side by side on multiple access points and we've experienced the
same problems everywhere ONLY on the acer laptops.

Anyone got the faintest idea what the problem could be.

Just a stupid question, but do you have the APs on different channels so
they don't interfere? How many APs are there, and how many SQFT do they
cover?

Jeremy

"Alasdair Kesson" <(E-Mail Removed) > wrote
in message news:(E-Mail Removed)...
> Let me outline the scenario. A wireless LAN with multiple Cisco
> Aironet 350 access points (each in a separate building)
>
> Toshiba 1410 laptops with Cisco Aironet 350 PCMCIA cards (60)
> Acer Travelmate 230 laptops with Cisco Aironet 350 PCMCIA cards (10)
>
> Both types of laptop run win2k with sp3
>
> No problems at all with the Toshiba laptops.
>
> Acer laptops work fine on channels 6 and 11. On channel 1 pinging our
> servers RTT on pings is about 300ms (using Toshibas <10ms). The
> effect is that logging on to the domain takes forever etc Changing
> to channel 2 improves matters, channel 3 is better still. Channel 5
> onwards RTT is back to normal.
>
> I'd like to emphasise that both laptops run the same OS, service
> packs, drivers and these tests have been carried out with toshiba &
> acer side by side on multiple access points and we've experienced the
> same problems everywhere ONLY on the acer laptops.
>
> Anyone got the faintest idea what the problem could be.

On Wed, 9 Jul 2003 17:29:35 -0400, "Jeremy Parr"
<(E-Mail Removed)> wrote:

>Just a stupid question, but do you have the APs on different channels so
>they don't interfere? How many APs are there, and how many SQFT do they
>cover?
>

We have designed our wlan very carefully using the 3 non-overlapping
channels. No building has more than 2 access points in it and we
have no APs that transmit on the same frequency that are close enough
to interfere with each other.