Lots of internet lag with MBP

I have noticed that I'm getting tons of internet lag on my MBP 15". This is using a wireless connection with WEP through a DLink DI-614+ router. What usually happens is that every page I load in Safari will take awhile to get started, then will render itself at a normal pace.
What makes me think this is a Mac problem is that I am having zero problems with my Vista notebook running simultaneously.
What's more I don't remember having this problem upto the beginning of June (I was in a different country between now and then) - so perhaps it is related to an update since then?

Yes, looks like probably the same/similar thing as the above thread issues. In my case I'll mention that it has nothing to do with battery vs AC, and is reproducible every time.
Current solution - switched to boot camp and now working perfectly under XP ... .. hopefully Apple will fix this apparently fairly wide-spread issue soon.
Also on the assumption that it relates to the last update, which I think was not so long ago.. I don't think I can do an archive/install (or something like that..) because I don't have my setup disks in this country, and will have to wait until September to get them.

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    I've noticed for the past 2 weeks or so my internet connection has been really laggy and it takes forever to do anything. If I click on something, the spinning color wheel shows up. If I scroll up or down the page, the spinning color wheel shows up. I've tried clearing cache and it'll speed things back to normal for a few hours, but it'll go back to being really slow.
    Right now the spinning color wheel isn't showing up, but it might as well be cause the wait time is the same. It'll take roughly 5-10 seconds to scroll.
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    Copy your data to a new 2TB drive like WD Black ~$120 also
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    Сведения о приложении
    Имя: Firefox
    Версия: 33.1
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    Thanks for your reply.
    Actually the Linksys 2Wire modem works fine in OSX and when connecting via a Compaq PC I also have in the house. It is just on the MacBook running XP that it fails to "connect". XP see's the network but cannot connect.
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    I sent a messge to the bootcamp beta mail address informing them that it seems the drivers are not being downloaded with bootcamp.
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