I just have an question:

I have a 108 Mbps D-Link Wireless XtremeG Router. I have the matching 108 Mbps D-Link WLAN card for my desktop computer. My Tablet PC has a 54Mbps Wi-Fi antanna built in.

When I connect to my wireless network at home, my desktop has no issues connecting with the wireless network. It constantly connects at 108 Mbps, all the time without connection drops or reduction of speed. Signal Strength remains constantly between Very Good and Excellent.

When I connect with My Tablet, Signal strength also remains Very Good or Excellent, however the speed varies. When it first connects it transfers at a speed of 54 Mbps, the maximum connection speed of the Tablet, which is fine with me, but sometimes it deteriorates to 2 or sometimes 1 Mbps. Although the signal strength is excellent. Why is this? Why can my desktop be constantly at peak performance, but my tablet deteriorates over time?

This connection speed problem happens regardless if the tablet is on battery or AC power. So I know it's not the tablet trying to save battery.

I have an Acer Travelmate C314 Tablet PC running XP Tablet Edition 2005 with all the latest critical, recommended and hardware updates.

I believe it is because you're using 108 Mbps which is a conforming format
only for the devices with that "accelerator" on their products. Your Tablet
PC runs a standard, approved 54 Mbps. Remember, if you're showing 54 Mbps
your the throughput is going to be less. 8-)
--
Chris H.
Microsoft Windows MVP/Tablet PC
Tablet Creations - http://nicecreations.us/
Associate Expert
Expert Zone - www.microsoft.com/windowsxp/expertzone


"Lawrence A. Wong" <lawrence-wong@sympatico.ca> wrote in message
news:eKtHB3YlFHA.576@tk2msftngp13.phx.gbl...
I just have an question:

I have a 108 Mbps D-Link Wireless XtremeG Router. I have the matching 108
Mbps D-Link WLAN card for my desktop computer. My Tablet PC has a 54Mbps
Wi-Fi antanna built in.

When I connect to my wireless network at home, my desktop has no issues
connecting with the wireless network. It constantly connects at 108 Mbps,
all the time without connection drops or reduction of speed. Signal Strength
remains constantly between Very Good and Excellent.

When I connect with My Tablet, Signal strength also remains Very Good or
Excellent, however the speed varies. When it first connects it transfers at
a speed of 54 Mbps, the maximum connection speed of the Tablet, which is
fine with me, but sometimes it deteriorates to 2 or sometimes 1 Mbps.
Although the signal strength is excellent. Why is this? Why can my desktop
be constantly at peak performance, but my tablet deteriorates over time?

This connection speed problem happens regardless if the tablet is on battery
or AC power. So I know it's not the tablet trying to save battery.

I have an Acer Travelmate C314 Tablet PC running XP Tablet Edition 2005 with
all the latest critical, recommended and hardware updates.

I know that the throughput is going to be less, but when I hover my mouse
over the Wireless Connection icon in the taskbar, my connection speed to the
network varies from 54 Mbps to 1 Mbps. Why is this? Why isn't it constantly
at 54 Mbps? My desktop seems to be able to constantly stay connected at it's
maximum connection speed. I'm wondering why my Tablet cannot do the same
since they are both in the same room.

Do you notice it happening in specific rooms? The router should have options
to limit which transfer rates you allow. So, sometimes you are getting
excellent reception at 54, and sometimes at 2. Try turning off speeds other
than 54 and 108, just to test what happens. I have noticed similar issues at
work with a Linksys 802.11g router. And Linksys, at the time, didn't have any
accelerator. You may consider, if possible, setting up an extender. I have a
wireline network as well as wireless in the house. The master bedroom would
only do 6 Mbps until T put an extender in there.

Hope that's of some help to you. Also, remember, your desktop isn't moving,
so it gets 108, and stays there. It's also probably in the room with the
router.

Michael

"Lawrence A. Wong" wrote:

> I just have an question:
>
> I have a 108 Mbps D-Link Wireless XtremeG Router. I have the matching 108 Mbps D-Link WLAN card for my desktop computer. My Tablet PC has a 54Mbps Wi-Fi antanna built in.
>
> When I connect to my wireless network at home, my desktop has no issues connecting with the wireless network. It constantly connects at 108 Mbps, all the time without connection drops or reduction of speed. Signal Strength remains constantly between Very Good and Excellent.
>
> When I connect with My Tablet, Signal strength also remains Very Good or Excellent, however the speed varies. When it first connects it transfers at a speed of 54 Mbps, the maximum connection speed of the Tablet, which is fine with me, but sometimes it deteriorates to 2 or sometimes 1 Mbps. Although the signal strength is excellent. Why is this? Why can my desktop be constantly at peak performance, but my tablet deteriorates over time?
>
> This connection speed problem happens regardless if the tablet is on battery or AC power. So I know it's not the tablet trying to save battery.
>
> I have an Acer Travelmate C314 Tablet PC running XP Tablet Edition 2005 with all the latest critical, recommended and hardware updates

The way wireless works is self adjusting -- if you start dropping packets, or
having other problems, it negotiates with the AP and slows down the speed.
Unfortunately, it never really speeds it back up unless you do a "repair" of
the connection.

Having a non-D-Link client in a network that is using D-Link's proprietary
doubling technology is problematic. In theory, the router/ap should negotiate
and maintain a normal 802.11g connection with the non-D-Link wireless clients
on the network. In my experience, that simply doesn't work all that well, and
you get the behaviour you are seeing. Turning off all that proprietary stuff
on the router and using pure 802.11g for everything seems to be much better
behaved. Yes, your desktop will be slower. But the overall network will be
better.


--
Please, all replies to the newsgroup.
======================
Charlie.
http://www.msmvps.com/xperts64/


Lawrence A. Wong wrote:
> I know that the throughput is going to be less, but when I hover my
> mouse over the Wireless Connection icon in the taskbar, my connection
> speed to the network varies from 54 Mbps to 1 Mbps. Why is this? Why
> isn't it constantly at 54 Mbps? My desktop seems to be able to
> constantly stay connected at it's maximum connection speed. I'm
> wondering why my Tablet cannot do the same since they are both in the
> same room.

Like Michael as offered, the environment can have a great deal to do with
it. I have one spot on our back deck where my 54 Mbps dips dramatically,
but it happens to be exactly in a direct line with our home's electrical
box. The kitchen is fine, unless I get up close to the refrigerator on the
side opposite the refrigerator. 8-)

That's not to say you're not seeing fluctuation, mind you, but that other
things beside the "ratings" come into play. You might want to see what
information you can find on the Internet on sites specializing in
networking, like www.practicallynetworked.com . They really know their
stuff on that site.

I still think is it because you've got a proprietary acceleration which is
non-standard. It only works correctly with the order components designed
with that hardware. A good test would be, as Michael suggested, to segment
your LAN with a dedicated 802.11g 54G router set up as a wireless bridge to
serve only the Tablet PC. The Queen of Geek, MVP Barb Bowman, has a column
describing segmenting a home LAN here:
http://www.microsoft.com/windowsxp/u...an_segnet.mspx
--
Chris H.
Microsoft Windows MVP/Tablet PC
Tablet Creations - http://nicecreations.us/
Associate Expert
Expert Zone - www.microsoft.com/windowsxp/expertzone


"Lawrence A. Wong" <lawrence-wong@sympatico.ca> wrote in message
news:%23w7HdpdlFHA.3960@TK2MSFTNGP12.phx.gbl...
>I know that the throughput is going to be less, but when I hover my mouse
>over the Wireless Connection icon in the taskbar, my connection speed to
>the network varies from 54 Mbps to 1 Mbps. Why is this? Why isn't it
>constantly at 54 Mbps? My desktop seems to be able to constantly stay
>connected at it's maximum connection speed. I'm wondering why my Tablet
>cannot do the same since they are both in the same room.
>

I dig a bit further and contacted Barb Bowman on your issues. She says two
flavors or "speed boosters" exist: Atheros and Broadcom. Both chipsets are
individually proprietary and not guaranteed to be compatible, even between
the "108" brands. She suggested you could turn off dynamic turbo and use
just "turbo" you may have a better chance of success with your 54G Tablet
PC's connection.
--
Chris H.
Microsoft Windows MVP/Tablet PC
Tablet Creations - http://nicecreations.us/
Associate Expert
Expert Zone - www.microsoft.com/windowsxp/expertzone


"Lawrence A. Wong" <lawrence-wong@sympatico.ca> wrote in message
news:%23w7HdpdlFHA.3960@TK2MSFTNGP12.phx.gbl...
>I know that the throughput is going to be less, but when I hover my mouse
>over the Wireless Connection icon in the taskbar, my connection speed to
>the network varies from 54 Mbps to 1 Mbps. Why is this? Why isn't it
>constantly at 54 Mbps? My desktop seems to be able to constantly stay
>connected at it's maximum connection speed. I'm wondering why my Tablet
>cannot do the same since they are both in the same room.
>

Yup.

--
Please, all replies to the newsgroup.
======================
Charlie.
http://www.msmvps.com/xperts64/


Chris H. wrote:
> I dig a bit further and contacted Barb Bowman on your issues. She
> says two flavors or "speed boosters" exist: Atheros and Broadcom. Both
> chipsets are individually proprietary and not guaranteed to be
> compatible, even between the "108" brands. She suggested you could
> turn off dynamic turbo and use just "turbo" you may have a better
> chance of success with your 54G Tablet PC's connection.
>
> "Lawrence A. Wong" <lawrence-wong@sympatico.ca> wrote in message
> news:%23w7HdpdlFHA.3960@TK2MSFTNGP12.phx.gbl...
>> I know that the throughput is going to be less, but when I hover my
>> mouse over the Wireless Connection icon in the taskbar, my
>> connection speed to the network varies from 54 Mbps to 1 Mbps. Why
>> is this? Why isn't it constantly at 54 Mbps? My desktop seems to be
>> able to constantly stay connected at it's maximum connection speed.
>> I'm wondering why my Tablet cannot do the same since they are both
>> in the same room.

Before you go off on a tangent trying to nail down the accelerator of your D-Link you should be aware that your Acer uses the Intel 2200BG wireless chipset and I have seen this chip have problems maintaining (strong) connections to 802.11g networks. The symptoms are repeated speed step-downs and sometimes dropped connections. It is recommended to download the latest drivers from Intel (Google Intel 2200BG drivers) and in the Intel ProSet configuration set the power management to maximum performance. This has fixed some owner's problems, it did not fix mine on the HP tc1100. This same chipset will work with slower networks, e. g. 802.11b with no problems at all.
"Lawrence A. Wong" <lawrence-wong@sympatico.ca> wrote in message news:eKtHB3YlFHA.576@tk2msftngp13.phx.gbl...
I just have an question:

I have a 108 Mbps D-Link Wireless XtremeG Router. I have the matching 108 Mbps D-Link WLAN card for my desktop computer. My Tablet PC has a 54Mbps Wi-Fi antanna built in.

When I connect to my wireless network at home, my desktop has no issues connecting with the wireless network. It constantly connects at 108 Mbps, all the time without connection drops or reduction of speed. Signal Strength remains constantly between Very Good and Excellent.

When I connect with My Tablet, Signal strength also remains Very Good or Excellent, however the speed varies. When it first connects it transfers at a speed of 54 Mbps, the maximum connection speed of the Tablet, which is fine with me, but sometimes it deteriorates to 2 or sometimes 1 Mbps. Although the signal strength is excellent. Why is this? Why can my desktop be constantly at peak performance, but my tablet deteriorates over time?

This connection speed problem happens regardless if the tablet is on battery or AC power. So I know it's not the tablet trying to save battery.

I have an Acer Travelmate C314 Tablet PC running XP Tablet Edition 2005 with all the latest critical, recommended and hardware updates.

In article <#w7HdpdlFHA.3960@TK2MSFTNGP12.phx.gbl>, lawrence-
wong@sympatico.ca says...
> I know that the throughput is going to be less, but when I hover my mouse
> over the Wireless Connection icon in the taskbar, my connection speed to the
> network varies from 54 Mbps to 1 Mbps. Why is this? Why isn't it constantly
> at 54 Mbps? My desktop seems to be able to constantly stay connected at it's
> maximum connection speed. I'm wondering why my Tablet cannot do the same
> since they are both in the same room.
>
>
>
I've got a Motion M1400 that came with an Intel Pro 2200BG wifi card.
It kept doing the same thing. Would start up at 54 then gradually drop
to half then to 2 and 1 and finally disconnect (or just stop
responding)--over a 15 minute period or less--and 5 feet from the AP.
Turn off the wifi and turn it back on and it'd be back at 54 again. I
tried new drivers and the Pro/Wireless software--no change. I tried a
beta driver that wasn't even on Intel's site--no change. I tried
replacing the 3com AP with another brand--no change. I was just about
to replace the Intel card with another when I ran across a posting about
a newer beta driver. I installed that--and guess what. Solid signal.
Stays at 54 through most of the house but even in weaker areas it stays
put and doesn't disconnect. Acts like a totally different card.
Something about the logic of dropping the card speed based on load
wasn't working right--as soon as the card wasn't being used it dropped
the speed further--and further--and further.

The driver is 9.0.1.21 dated 2/11/2005. It is not available on the
Intel site. I can track down the URL if anyone's interested. OOPS--the
Intel site *HAS* been updated with 9.0.1.25 dated 7/7/2005. WOW. (I
think I'll play safe and NOT update--it's working too well just now!)
If you've got an Intel Pro/Wireless 2200bg I highly recommend it.
--
Jud
Dallas TX USA

You could always try the new one, and if it doesn't give you the same
performance, use Roll Back Driver in Device Manager. Wonderful feature of
Windows XP.
--
Chris H.
Microsoft Windows MVP/Tablet PC
Tablet Creations - http://nicecreations.us/
Associate Expert
Expert Zone - www.microsoft.com/windowsxp/expertzone


"Jud Hardcastle" <I5i5changethistodash5rbo@xemaps.com> wrote in message
news:MPG.1d5744c9121844d9898bc@news.dallas.sbcglob al.net...
>
> I've got a Motion M1400 that came with an Intel Pro 2200BG wifi card.
> It kept doing the same thing. Would start up at 54 then gradually drop
> to half then to 2 and 1 and finally disconnect (or just stop
> responding)--over a 15 minute period or less--and 5 feet from the AP.
> Turn off the wifi and turn it back on and it'd be back at 54 again. I
> tried new drivers and the Pro/Wireless software--no change. I tried a
> beta driver that wasn't even on Intel's site--no change. I tried
> replacing the 3com AP with another brand--no change. I was just about
> to replace the Intel card with another when I ran across a posting about
> a newer beta driver. I installed that--and guess what. Solid signal.
> Stays at 54 through most of the house but even in weaker areas it stays
> put and doesn't disconnect. Acts like a totally different card.
> Something about the logic of dropping the card speed based on load
> wasn't working right--as soon as the card wasn't being used it dropped
> the speed further--and further--and further.
>
> The driver is 9.0.1.21 dated 2/11/2005. It is not available on the
> Intel site. I can track down the URL if anyone's interested. OOPS--the
> Intel site *HAS* been updated with 9.0.1.25 dated 7/7/2005. WOW. (I
> think I'll play safe and NOT update--it's working too well just now!)
> If you've got an Intel Pro/Wireless 2200bg I highly recommend it.
> --
> Jud
> Dallas TX USA

On 7/31/2005 9:28:39 PM, Jud Hardcastle wrote:
>>
>>
>>
>I've got a Motion M1400 that came with an Intel Pro 2200BG wifi card.
>It kept doing the same thing. Would start up at 54 then gradually drop
>to half then to 2 and 1 and finally disconnect (or just stop
>responding)--over a 15 minute period or less--and 5 feet from the AP.
>Turn off the wifi and turn it back on and it'd be back at 54 again. I
>tried new drivers and the Pro/Wireless software--no change. I tried a
>beta driver that wasn't even on Intel's site--no change. I tried
>replacing the 3com AP with another brand--no change. I was just about
>to replace the Intel card with another when I ran across a posting about
>a newer beta driver. I installed that--and guess what. Solid signal.
>Stays at 54 through most of the house but even in weaker areas it stays
>put and doesn't disconnect. Acts like a totally different card.
>Something about the logic of dropping the card speed based on load
>wasn't working right--as soon as the card wasn't being used it dropped
>the speed further--and further--and further.
>
>The driver is 9.0.1.21 dated 2/11/2005. It is not available on the
>Intel site. I can track down the URL if anyone's interested. OOPS--the
>Intel site *HAS* been updated with 9.0.1.25 dated 7/7/2005. WOW. (I
>think I'll play safe and NOT update--it's working too well just now!)
>If you've got an Intel Pro/Wireless 2200bg I highly recommend it.
>--
>Jud
>Dallas TX USA
>


I've had similar problems with my Toshiba M200. I had to stick with Intel's
version 8 drivers since version 9.* did the same things. But the newer
9.0.2.0 drivers that the posted recently on Intel's site are much more stable
- haven't had a single drop off yet.

Course, I'm still not at all happy with the speed - I can plug in a USB
wireless device on the same machine to the same access point and I can more
than triple the bandwidth I have - my 2200GB just stinks...

But for most things at least it's not an issue, just when I'm doing large
file transfers. But even internet downloads I end up putting in the USB if
it's a large file, because it's so much faster.

Even got with Intel to try to tweak settings, but nothing helped... And since
I span dozens of networks, I've had the opportunity to try this against just
about every wireless access point made...


--
John D [MVP - Tablet PC]

Jud Hardcastle wrote:
> The driver is 9.0.1.21 dated 2/11/2005. It is not available on the
> Intel site. I can track down the URL if anyone's interested. OOPS--the
> Intel site *HAS* been updated with 9.0.1.25 dated 7/7/2005. WOW. (I
> think I'll play safe and NOT update--it's working too well just now!)
> If you've got an Intel Pro/Wireless 2200bg I highly recommend it.

Wowee, this was /really/ great info! :)) Was already about to give up on
the 2200bg and buy an external adapter. The 2200bg / "centrino" crap was
really bordering on the useless, before I updated from 9.0.1.19 to this
new one.

Looks like finally(!!) a 2200bg driver release that doesn't either
sporadically bluescreen or then constantly drop the connection during
downloads and surfing. Luckily the linux 'ipw2200' has been working rock
solid in the meantime of 6+ months. Hope they get the XP driver's link
speed en par with the linux driver next :-)

Anyways, 9.0.2.25 works very solid, 2 days running without probs now. On
an Acer C302Xmi. I can only recommend it! 8-) Probably an update would
solve your issues too, Lawrence.

- Jan

Just curious, Jan, have you been using XP's Wireless Zero Configuration to
manage your connection, or just the Intel software?
--
Chris H.
Microsoft Windows MVP/Tablet PC
Tablet Creations - http://nicecreations.us/
Associate Expert
Expert Zone - www.microsoft.com/windowsxp/expertzone


"Jan Wagner" <no_spam@thanks.net> wrote in message
news:%23GS%23daOmFHA.1948@TK2MSFTNGP12.phx.gbl...
>
> Jud Hardcastle wrote:
>> The driver is 9.0.1.21 dated 2/11/2005. It is not available on the Intel
>> site. I can track down the URL if anyone's interested. OOPS--the Intel
>> site *HAS* been updated with 9.0.1.25 dated 7/7/2005. WOW. (I think
>> I'll play safe and NOT update--it's working too well just now!) If
>> you've got an Intel Pro/Wireless 2200bg I highly recommend it.
>
> Wowee, this was /really/ great info! :)) Was already about to give up on
> the 2200bg and buy an external adapter. The 2200bg / "centrino" crap was
> really bordering on the useless, before I updated from 9.0.1.19 to this
> new one.
>
> Looks like finally(!!) a 2200bg driver release that doesn't either
> sporadically bluescreen or then constantly drop the connection during
> downloads and surfing. Luckily the linux 'ipw2200' has been working rock
> solid in the meantime of 6+ months. Hope they get the XP driver's link
> speed en par with the linux driver next :-)
>
> Anyways, 9.0.2.25 works very solid, 2 days running without probs now. On
> an Acer C302Xmi. I can only recommend it! 8-) Probably an update would
> solve your issues too, Lawrence.
>
> - Jan

Hi Chris,

Chris H. schrieb:
> Just curious, Jan, have you been using XP's Wireless Zero Configuration to
> manage your connection, or just the Intel software?

Before and after the update I'm still using XP's WZC and of course the
basic Intel drivers, but never installed any of the PROSet or other
additional Intel WLAN management tools. While WZC lacks a lot in geek
factor, in my experience it just works reliably, unlike some wlan
chipset manufacturer's own config tools :-)

- Jan