I just have to ask, what the hell are y'all talking about? You spent hours uninstalling Quicktime? Apples will pull massive bandwidth? Am I taking crazy pills?
Seriously though, Macs are PCs. There is no difference anymore. With the right computer and tools, you can install MacOS on a PC. You can install Windows on any Mac made after 2007. Dragon, the fact that your daughter is on a Mac has nothing to do with your disconnects. You'd likely have the same issue if she were on a PC or a tablet or an internet connected shoe watching videos.
That's as may be dabney. But, I have 4 other computers, (3 wired, 1 wireless) all running one version of Windows or another. At least 2 Android phones and sometimes 3, 2 Kindle Fires, 1 Western Digital Media Player, 1 Sony Blu-Ray/Receiver, 1 Onkyo Receiver, and a Wii, which if I'm running the PS3, is turned off, all up and on the network at the same time. No D/C issues, modem doesn't de-synch, until that macdevilbook gets turned on and is used to browse the web, stream media or other bs. I will beg to disagree with you here dabney. I have empirical evidence to the contrary. I can literally tell when my daughter has it up and I can tell when she is streaming media to it, just by the level of d/cs I experience while playing GT5.
It happened last night. My modem de-synched in the early evening, and all that was actually using the internet was this machine (Win 7), maybe my wife's (Win XP), perhaps 3 android phones, and that macdevilbook. I am down here with the modem and as soon as google drive and GTPlanet wouldn't refresh I turned around to see the modem trying to re-synch. I waited a bit and decided to power cycle the whole network. Shut down everything. And I mean everything. Brought network back up and told my "users" it was back up. A couple hours later I tried to join D2 lounge to watch the last open wheel series race and didn't stay in the lounge long enough to type "wassup". Backed out, cleared GT5 cache and tried again. Same thing. Walked upstairs to ask my daughter what she was streaming. She immediately begins to kill it and I told her I wasn't racing tonight and not to worry about. This is not the first time this has occurred.
As for the quicktime thing. Every time I've had to install it to view some media file, it's tried to usurp file associations for every media extension known to man. Newer versions have improved this idiotic feature, but it's far to late for me to accept. If I have to view a media file that requires quicktime, it gets installed long enough to view, then gets scrubbed, again. Then there is the autoupdate bs it tries to do, and the service that starts at boot that is unnecessary for anything. Kind of like a default installation of JRE.
Nothing does anything on my machines unless I specifically tell it to, period. Not even Windows.
I keep an eye on running processes and if there's something there I don't know or want to run, I'm hunting it down and killing it. At one point I had my XP machines booting with 10 or less processes. They screamed, even with sub-par hardware. Win 7 kinda annoys me in this respect. A bone stock fresh install had somewhere near or over 30 processes at boot. All of them were apparently required for 7 to run. The systems we have at work, by comparison, have over 80 processes running on boot, they are all slower than molasses in January and have twice the hardware my Win 7 box has.
At any rate. Yes you may be stark raving mad, and I might be as well. But the evidence I have says, in this instance, me, not so much. What crazy pills you take however, is your business.
And I will have to disagree with you on another point. Apple computers are not PCs. They are DCs, that does not stand for DisConnect either, although it easily could in my case.
You just had to ask, didn't you.