Vista - Internet problems through wireless router.

I seem to have been having problems with the internet over the last few weeks. Strangely enough none of the other computers connected to the network seem to have the problems so it has to be something to do with my Vista 64 bit computer.

It seems to happen regularly, at early morning (after midnight), it'll suddenly refuse to connect to any websites or view anything, but MSN will still be connected, and I can still communicate through it, as I can with deviantArt's chat feature.
I figured it was a DNS problem, but I can't even connect through IP addresses.

The other problem I'm having (though i'm not sure if its related) is that Vista seems to have issues connecting to any website first time. I always have to either refresh, click go on the address bar, or click on the try again button in firefox, and it always seems to pick up on the second try.

The 32 bit Vista computer and my laptop running XP both on the network don't have any of these problems.

So, is there any way to fix it?

Thanks.
-Andrew.

I hame similar problems with internet. Some pages are working and some not, at the same time. But for example RapGet is downloading and at the same time web pages are not available. Does anybody else have this problems ? Somebody fixed it yet ? And for record, my XP didnt have this problem.

For me, installing the service pack through updates (I'd check and see if you have any updates available) seems to have fixed it. Haven't had a problem since.

I will try this, but I am from Slovak Republic and my language version of Vista x64 is slovak. So I must still wait for final SP1.