network connectivity system tray icon shows exclamation and no internet when in fact there is internet connection

I have a puzzling problem. The network status notification icon displays a yellow bang (exclamation point) and the accompanying message that says "no internet connection" when in fact there is, and I am able to surf the web.  I have installed the latest release of the intel drivers relevant to the onboard nics to no avail.  This is a brand new server with an Intel mobo and nics and is running under windows server 2008r2.  This is a dedicated MS Exchange 2010 Server, and also has Active Directory and DNS roles installed.  How can I resolve this?  I have an identical server that is a domain controller/file server that does not have this problem.  Each server has two nics--one is configured on a local subnet that services the internal network and the other is configured on a different subnet to accommodate an apc ups PowerChute Network Shutdown protocol.  Thanks for any help you can offer...