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From: Doug Jantzer on 6 Feb 2010 21:56
I just added WPA2 password protection to my wireless network.
As far as I know, that's all that changed.

Now, my DL speeds on usenet have gone from 14.5 to 5.8 Mb/s.
I noticed this the first time I DLed a file after adding the password.

Could the password protection be affecting my DL speeds?

What else can explain this drop in speed?
From: David Empson on 7 Feb 2010 16:32
Doug Jantzer <doug(a)gmail.com.invalid> wrote:

> I just added WPA2 password protection to my wireless network.
> As far as I know, that's all that changed.
>
> Now, my DL speeds on usenet have gone from 14.5 to 5.8 Mb/s.
> I noticed this the first time I DLed a file after adding the password.
>
> Could the password protection be affecting my DL speeds?

Easy way to test that theory: turn off the WPA2 encryption again and see
if the normal speed returns.

To answer your question: yes it is possible that enabling encryption
could affect the speed of file transfers through a wireless network, BUT
I would expect it to be negligible unless the computer didn't have
hardware support for doing WPA2 encryption, and was struggling to do it
in software (which would imply an old and slow computer).

For example, Apple's original Airport cards didn't support WPA in
hardware, only WEP. If you ran Mac OS X 10.3 or later they did WPA in
software. (They still couldn't do WPA2, if I remember right.)

I don't know what the situation is with Airport Extreme cards. I expect
they do at least WPA in hardware, but WPA2 might need software support.

--
David Empson
dempson(a)actrix.gen.nz
From: Tom Stiller on 7 Feb 2010 17:24
In article <1jdlbe9.zyy0jt11ihg0nN%dempson(a)actrix.gen.nz>,
dempson(a)actrix.gen.nz (David Empson) wrote:

> I don't know what the situation is with Airport Extreme cards. I expect
> they do at least WPA in hardware, but WPA2 might need software support.

Airport Extremes do WPA and WPA2 in hardware.

--
Tom Stiller

PGP fingerprint = 5108 DDB2 9761 EDE5 E7E3 7BDA 71ED 6496 99C0 C7CF
From: Doug Jantzer on 7 Feb 2010 18:24
In article <tom_stiller-50C2C2.17243407022010(a)news.individual.net>,
Tom Stiller <tom_stiller(a)yahoo.com> wrote:

> In article <1jdlbe9.zyy0jt11ihg0nN%dempson(a)actrix.gen.nz>,
> dempson(a)actrix.gen.nz (David Empson) wrote:
>
> > I don't know what the situation is with Airport Extreme cards. I expect
> > they do at least WPA in hardware, but WPA2 might need software support.
>
> Airport Extremes do WPA and WPA2 in hardware.

I'm using an early 2009 unibody MBP, OSX 10.6.2
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