Andrew Daviel wrote:
I have had a ticket open with Proxim for months, but nothing useful yet.
There was a suggestions to disable unique SSIDs.
I forgot to ask as it didn't occur to me before. Are any of your SSIDs
hidden? I don't recall the strange terminology used by Proxim's web UI
but it
ext Andrew Daviel [EMAIL PROTECTED] writes:
On Fri, 22 Aug 2008, Kalle Valo wrote:
First of all, sorry for taking so long. I was on vacation and had some
urgent things to do first. The capture data is really helpful, thanks
a lot for that. I'm looking at them right now.
Did you ever find
On Fri, 17 Oct 2008, Gary wrote:
I know it's difficult to do in a production environment but have you
experimented with different AP firmware revisions? 3.4.0 is still very
solid but some of the interim releases between there and 3.7 broke more
than it fixed. I'm not on any of their announce
On Fri, 22 Aug 2008, Kalle Valo wrote:
First of all, sorry for taking so long. I was on vacation and had some
urgent things to do first. The capture data is really helpful, thanks
a lot for that. I'm looking at them right now.
Did you ever find anything ?
I still have the problem, after a
Andrew Daviel wrote:
my problem is that the WiFi eats power talking
to the Proxim APs at work, as if Power Save mode were not enabled
I know it's difficult to do in a production environment but have you
experimented with different AP firmware revisions? 3.4.0 is still very
solid but some of
On Wed, 17 Sep 2008, Gary wrote:
On Sun, Sep 14, 2008 at 11:42 AM, Andrew Daviel wrote:
measuring the battery current and setting up an AP4000
Can I assume this is a Proxim AP? The 700s may be found for a fair price
these days and use the same chipsets and firmware. Of course, the
Andrew Daviel wrote:
I was measuring the battery current directly:
http://andrew.triumf.ca/andrew/photos/100_0536.JPG
That isn't a 3rd party battery is it?
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On Wed, 15 Oct 2008, Gary wrote:
Andrew Daviel wrote:
I was measuring the battery current directly:
http://andrew.triumf.ca/andrew/photos/100_0536.JPG
That isn't a 3rd party battery is it?
Yes. The original Nokia one failed (I think the clips might have fatigued
due to vibration in the
Andrew Daviel wrote:
Meantime after trying
several local stores for an OEM one I found this clone which has worked
nicely ever since.
I ask because the only time I had battery issues was when I'd installed
one of the early canola betas. It seemed like it had some background
networking task
On Wed, 15 Oct 2008, Gary wrote:
Andrew Daviel wrote:
Meantime after trying
several local stores for an OEM one I found this clone which has worked
nicely ever since.
I ask because the only time I had battery issues was when I'd installed
one of the early canola betas. It seemed like it
On Sun, Sep 14, 2008 at 11:42 AM, Andrew Daviel wrote:
measuring the battery current and setting up an AP4000
at home is a bit more time consuming.
Can I assume this is a Proxim AP? The 700s may be found for a fair price
these days and use the same chipsets and firmware. Of course, the
On Fri, 22 Aug 2008, Kalle Valo wrote:
I have placed some capture data on my server at
http://andrew.triumf.ca/reqauth/PSM/
(password test/test to keep out robots and the clueless)
First of all, sorry for taking so long. I was on vacation and had some
urgent things to do first. The capture
On Tue, 5 Aug 2008, David Grau Serra wrote:
Capture files on
http://andrew.triumf.ca/reqauth/PSM/
It is necessary an user and a pass =-O
the user = passwd = test, which is in the challenge. I had creted that
directory for a demo of something else, and placed the capture files
there just
Hi,
Andrew Daviel wrote:
With beacon SSID enabled on triumf but disabled on test - 10mA
With beacon SSID enabled on triumf and enabled on test - 100mA
With beacon SSID disabled on triumf but enabled on test - 100mA
With beacon SSID disabled on triumf and disabled on test - 10mA
(The N810 is
I have done some more tests with the Proxim AP4000, but I still cannot
see a problem in the protocol. I have put an ammeter inline between the
N810 battery and connectors so I can see the current consumption in real
time - it is pretty impressive that it can draw virtually no current at
all
Capture files on
http://andrew.triumf.ca/reqauth/PSM/
It is necessary an user and a pass =-O
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On Sat, 26 Jul 2008, Andrew Daviel wrote:
I may be able to get a spare Proxim AP to take home. There's a limit on
what I can mess with on our production WLAN :-7, and I'd have a less
noisy environment.
Well, I got one. The power consumption seems normal (i.e. PS mode seems
to be working). I
On Thu, 24 Jul 2008, Kalle Valo wrote:
(packets from N810 captured with airodump-ng show as malformed)
Usually missing FCS causes this. There's a setting in Wireshark under
IEEE 802.11 to enable and disable FCS calculation. Try reverting that
option.
Yes. Edit/Preferences/Protocols/IEEE
I opened a ticket with Proxim. They suggest turning off SSID broadcast
and see if that reduces the battery use. Sounds like b/s to me, but I may
be wrong. If I try that at home, I have to mark the connection as
hidden otherwise I can't select it to connect to, and I suspect it
would annoy
ext John Holmblad [EMAIL PROTECTED] writes:
Kalle.
Hi John,
thanks for sharing your deep, if sleep deprived, insights re 802.11
power management.
I'm glad that it was helpful.
I have read them out of both general interest in the workings of
802.11 but also as a result of the fact that
ext Frederic Crozat [EMAIL PROTECTED] writes:
Why is PSM so fragile then? Since I can't sleep (jet lag, argh), I'll
write a bit about this.
snip
wow, thanks for the detail explanations. I kind of better understand
PSM issues.
Excellent.
A first bug was found in ralink proprietary driver
ext Andrew Daviel [EMAIL PROTECTED] writes:
Excellent writeup, thanks :-)
You welcome.
So, what devices apart from the Nokia tablets use PSM ?
Nokia phones (N95, N81 etc) use WLAN PSM. They might even have more
aggressive PSM tablets have.
iPhone ?
I once (like a year ago) played with an
On Wed, Jul 23, 2008 at 9:43 PM, Kalle Valo [EMAIL PROTECTED] wrote:
ext Frederic Crozat [EMAIL PROTECTED] writes:
But what I could do is to analyse the problem myself. It would take
only an hour or two, including writing a small report about the
problem which I can send everyone interested
Andrew,
after thinking about Kalle's explanation of PSM, and as the owner of a
UTStarcom Windows Mobile handset (Verizon Wireless XV6700) that supports
both EVDO and 802.11b, I have to conclude that, The UTS XV6700 does not
do a satisfactory job with respect to PSM.
My conclusion here is
On Mon, 21 Jul 2008, Andrew Daviel wrote:
Is there anything for the tablets that can log wireless traffic in enough
detail to show whether PSM is working ? airodump-ng ??
Should have tried before posting. I have a couple of capture files made
with airodump-ng --beacons, which I can view in
ext Andrew Daviel [EMAIL PROTECTED] writes:
On Mon, Apr 21, 2008 at 4:58 PM, Eero Tamminen [EMAIL PROTECTED]
wrote:
One possibility is a WLAN AP with broken power management
I recently noticed that my tablet battery runs down faster at work than
at home, with the WiFi enabled but
On Mon, 21 Jul 2008, Kalle Valo wrote:
I recently noticed that my tablet battery runs down faster at work than
at home, with the WiFi enabled but otherwise sitting idle (12%/hour vs
1%/hour).
What do you mean by 12%/hour? That the battery will run out in eight
hours?
I guess. I was using
ext Frederic Crozat [EMAIL PROTECTED] writes:
What power-management issues have you seen affecting battery life ?
I think it is usually caused by interoperability deficiency between
770/n8x0 and some routers wifi chipset regarding PSM (Power Saving
Management) part of wifi specification.
ext Andrew Daviel [EMAIL PROTECTED] writes:
On Mon, 21 Jul 2008, Kalle Valo wrote:
I recently noticed that my tablet battery runs down faster at work than
at home, with the WiFi enabled but otherwise sitting idle (12%/hour vs
1%/hour).
What do you mean by 12%/hour? That the battery will
On Mon, Jul 21, 2008 at 11:39 AM, Kalle Valo [EMAIL PROTECTED] wrote:
ext Frederic Crozat [EMAIL PROTECTED] writes:
What power-management issues have you seen affecting battery life ?
I think it is usually caused by interoperability deficiency between
770/n8x0 and some routers wifi chipset
Excellent writeup, thanks :-)
So, what devices apart from the Nokia tablets use PSM ?
iPhone ? Palm ? Windows Mobile devices like the UTstarcom PocketPC ?
I opened a ticket with Proxim; not sure if our contract includes support
but maybe I'll get a reply.
Is there anything for the tablets
On Mon, Apr 21, 2008 at 4:58 PM, Eero Tamminen [EMAIL PROTECTED]
wrote:
One possibility is a WLAN AP with broken power management
I recently noticed that my tablet battery runs down faster at work than
at home, with the WiFi enabled but otherwise sitting idle (12%/hour vs
1%/hour).
I
On Sun, Jul 20, 2008 at 10:27 PM, Andrew Daviel [EMAIL PROTECTED] wrote:
On Mon, Apr 21, 2008 at 4:58 PM, Eero Tamminen [EMAIL PROTECTED]
wrote:
One possibility is a WLAN AP with broken power management
I recently noticed that my tablet battery runs down faster at work than
at home, with
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