Random BSOD and constant internet problems

Hello. Sorry that my second post here is to ask for help but i´m getting mad.

I had Win 7 RC for a while and everything was fine. Now I upgraded to Win 7 RTM (Clean install) and I recently started to have some crazy problems.

Sometimes I get BSOD with no apparent reason

My Internet slows to zero or nearly zero (tested with a download manager and torrent programs) and then goes to normal (happens a lot, maybe every 30 seconds)

It´s driving me nuts. If somebody can help I´d be very grateful

My Network is wired and I have broadband

here are my minidump reports

Sorry my english :)

Update:

Just did a system file scan and solved nothing

Network troubleshooter didn´t find any problems.
When I try to ping google I have a 200 ms ping and sometimes experience packet loss

Update:

Now i get a BSOD every 5 minutes or so. Can´t use the OS this waay

I´m going to reinstall and format the HD to see if that fixes the problem

Any advice?

Just reinstalled. Will update if the problem continues

It seems that a reinstall solved it