Too bad on their own Microsoft couldn't get it right.
On my own computer network, which includes Vista, Windows 7, and Server 2008, I turn off Microsoft's recent network 'improvements' since they tend to get in the way of connecting with Samba-based servers and NAS (network attached storage) devices and even older versions of Windows. I have yet to see any problems coming from sticking with Windows' older networking protocols.
Microsoft assures users, as usual, that they'll issue a real fix real soon now. I'm not holding my breath. If all goes well you can expect to see a real fix by Patch Tuesday, the first Tuesday of the month, in October.