OK, so I just put together a new PC and installed Windows 7 Home Premium. All my drivers are up to date and whatnot. The issue I'm getting is a somewhat frequent connection drop. I'm hardwired through CAT-5 to the router so it's not a wireless issue.
The drop does not disconnect me from WoW or Vent if I have them open, but I am unable to connect to websites or open new connections. If I log out of WoW/Vent, I am unable to reconnect. My solution is to disable/re-enable my network adapter in Device Manager. I've been Googling for solutions, and I haven't found anything really. Usually I'm really good with search terms, but perhaps not this time.
I disabled allowing the computer to turn the card off to save power option, and disabled IPv6 (was a suggestion on a site) to no avail. I've uninstalled/deleted the driver for the network adapter and reinstalled it.
I'm getting these connection losses maybe once in a 2-hour period, while actively using the computer.