I never said anything that discredited that notion. All I was saying was that some random setting or preference might have gotten broken (as in not what is preferred) and it may be quicker just to refresh the whole thing than spend countless hours trying to make repairs. It depends on how worthy your time is. Every operating system has its problems, I think pretending that it doesn't apply to OS X is just being ignorant. That's why we have the bug tracker, and a few dozen bugs that get patched every day.
If something is not working as it should, there is no reason to make excuses. Wipe that install and start fresh so everything works as it should. If it still doesn't work you know that it's either your network itself or a hardware problem. With Time machine being so perfected anyways, I fail to see what the big deal is refreshing your OS install and just clicking a button to put all your files/software back to the way it was before.