Thanks for the reply.
I should explain that I am not very technically experienced so please bear
The settings in the router are as set by Netgear technicians.
Wireless = Region is Europe, Channel is AUTO, Mode is Up to 270Mbps
The settings for the Intel Wi-Fi link 4965AGN card are as set by Dell
In Network Sharing Center>View Status> Properties then clicking on the
Configure Tab for the 4965 AGN card then the Advanced tab the following is
802.11n Channel Width = Auto
802.11n Mode = enabled
Ad Hoc Channel 802.11a = 36
Ad Hoc Channel 802.11b/g = 1
Ad Hoc Default Wireless Mode = 0.802.11b/g
Ad hoc Power Management = Disabled
Ad Hoc QoS Mode = WMM Enabled
Fat Channel Intolerant = Disabled
Mixed Mode Protection = CTS to self Enabled
Roaming Aggressiveness = Option 5. Highest
Throughput Enhancement = Enabled
Transmit Power = Option 5. Highest
Wireless Mode = Option 6. 802.11a/b/g (the other 5 options are a, b, g, b/g
and a/g) No provision for n
I do not know how to measure throughput but on the Vista laptop Network
Sharing Center > view status it shows a speed of 54.0 Mbps the equivalent of
On the older XP laptop if within a few feet of the router it shows the
speed as 270Mbps but varies between 150Mbps to 270Mbps
New Vista laptop has Intel Core 2 CPU T7200 @ 2.00Ghz, 2000Mhz. RAM is 2GB
Old XP laptop has Intel mobile Pentium 4 CPU 2.00GHz. Speed 1.95 GHz. RAM
Accessing identical data files simultaneously with the laptops side by side
the Vista is much quicker.
Accessing identical web pages simultaneously on wireless the XP is
On advice from a Netgear forum member I tried the following test.
I transferred a video file of 5.74GB (6,028,390KB) in size from the Vista to
the XP laptop over the wireless network. The advised time to transfer was
given as 43min 55sec. I started the transfer at 11:03 and it ended at 11:48.
The transfer was complete basically within a few seconds of 45mins.
At the start of the transfer (11:03) I noted the speed rate being advised as
282KB/sec. It then started showing speeds of 1.56MB/sec and by 11:09 was
showing 2.01MB/sec. The speed then started to increase up to 2.12MB/sec until
11:20 and from there it went to 2.15MB/sec where it remained until the
transfer was complete.
The transfer time of 2700sec (45min x 60) divided into the file size of
6,028,390KB gives a transfer rate of 2232.73KB/sec.
I used a calculator from web page http://www.speedguide.net/conversion.php
to convert KB storage to Datacomms Mbps it advises 2233KB equates to 18.293
Appreciate any views on this.
"Barb Bowman" wrote:
> remember this is DRAFT N and there is no guarantee of compatibility
> anywhere. what happens when you set the router to 802.11N only?
> how do you measure throughput?
> On Wed, 5 Sep 2007 14:06:00 -0700, tmwgray
> <firstname.lastname@example.org> wrote:
> >I bought a new Dell Inspiron 9400 Laptop with Vista Ultimate as the OS at the
> >beginning of June 2007.
> >One of the primary considerations in buying it was because it had an in
> >built Intel Next-Gen Wireless Wi-Fi Link 4965AGN card suitable for 801.11
> >draft n. I also bought a Netgear DG834N Modem/router suitable for 801.11
> >draft n all labelled up as Vista ready/approved. The 801.11 n protocol is
> >supposedly capable of providing download speeds of up to five times faster
> >(270kbps) than the current 801.11g which delivers 54mbps.
> >My problem is that the new Inspiron 9400 with Vista has never been able to
> >deliver more than 54mbps.
> >I checked with Netgear and they made sure I had the latest drivers and
> >firmware so that was OK.
> >I then called Dell who then took remote control of my laptop, which was on a
> >wired connection and after checking there was no problems with the Netgear
> >modem/router then made sure that the latest Intel drivers/software for the
> >Next-Gen Wireless Wi-Fi Link 4965AGN card were installed. After an hour of
> >trying they could not resolve the issue of the slower speed. I was told the
> >problem was referred to the highest level and they would get back to me.
> >Several days later they did, and took control of my laptop again on a wired
> >connection and fiddled about for another hour but still could not resolve it.
> >They needed more time to consult with the other manufacturers and suggested I
> >might use a PCMCIA laptop adaptor card to see if that worked.
> >I bought a Network WN511B laptop adaptor card which is the one recommended
> >to use with the DG834N router only to find that the Inspiron 9400 doesnâ€™t
> >support PCMCIA but uses Express Cards. By this time I was pretty
> >annoyed with Dell, however I used the PCMCIA card in my old laptop and
> >achieved varying speeds of between 130 to 270mbps on my wireless network.
> >I reported this back to Dell and they once again took control of my new
> >laptop on a wired connection to see what they could do. During this time I
> >was monitoring the mbps I was receiving on the old laptop and relaying it to
> >them. Yet again they failed to resolve the problem and they say I have to
> >wait for the release of Vista SP1 which should be in the next month.
> >Has anyone else experienced this problem or know of a solution.
> Barb Bowman
> MS Windows-MVP