> -----Original Message-----
> From: Dana [mailto:[EMAIL PROTECTED]
> Sent: Saturday, December 29, 2007 11:56 PM
> To: CF-Community
> Subject: Re: Wireless/internet connection drops
>
> why in the world does a wireless card need power management features
> anyway?
Wireless is a pretty hefty power hog - leaving it enabled constantly can
often reduce laptop charge life by 25%. For smaller devices (PDAs, Game
systems, etc) the drain can be even greater.
Most often this is handled manually - just turn wireless off - but various
schemes have been created to limit usage dynamically in an attempt to
prolong battery life.
> And I thought you said the wireless was up except that one connection
> to the
> internet?
I would still think that DNS is a prime suspect there - in normal usage only
the internet would be stricken "dead" by lack of DNS resolution while other
services (LAN, print sharing, etc) would still work.
What this might have to do with power saving is a mystery, but if the
solution works I wouldn't get too concerned about it. ;^)
> For what it is worth, it is a fact that one of the 802.11 protocols (I
> think
> but don't quite remember for sure that it is b) is notorious for being
> interfered with by cordless phones. The solution as I recall was going
> to
It's not really that the protocol is affected but rather that both
technologies use the same spectrum (2.4 GHz). When you've got a lot of
competing traffic on the same band things are bound to get garbled.
> to the newer iteration, g as I recall. To check what I am saying here
> google
"b" and "g" (and "a" for that matter) all use 2.4GHz but "G" is definitely
the more advanced of them - better error recovery and so forth. With the
models mentioned tho' I assumed that "G" was already in use.
I think (but I'm not sure) that "N" (the newest, and yet to be fully
ratified flavor) uses 2.4GHz as well but that the newer wide-area protocols
("WiMAX" for example) use a higher, more powerful frequency.
Jim Davis
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