I've seen others here who have had a somewhat similar situation. Upgraded to 12.04 recently and the first issue is that when I first boot up I have no network connection; if I just restart I'm suddenly connected. Incidentally, when I had upgraded to 11 I could never get a connection at all and ended up reloading 10.04.
Additionally, the connection I now do have is borked - most sites take way longer to load than before and I can't get any connection from others.

Help me please!!!