My Windows 7 Ultimate x64 PC has a strange networking issue. When I resume from sleep, no web pages will load (other programs such as Hamachi VPN are also unable to locate their servers). If I use Google Chrome, it says that DNS lookups are failing. However, if I then open a command window us use
NSLOOKUP to perform lookups for the web pages that just failed, the lookups appear to be working correctly. So the command prompt is able to perform lookups, while other applications such as web browsers are not.
I can clear this problem by disabling then enabling the network adapter in 'Network and Sharing Center'. After doing this, everything works again. It's a pain to have to do that each time I resume from sleep, though.
Anyone know the cause for this, or have a suggestion for how to troubleshoot it?