Windows 10 Connecting to the internet after installing windows 10 upgrade

When I upgraded from windows 8.1 pro with media center to windows 10 pro on volume 4(hard drive-C:\) , the windows 10 pro insider preview evaluation copy build 10532 started not connecting to internet on volume 6(hard drive-E:\).It read public network(which I do not use).I ran network diagnostics and got this error: "Ethernet does not have a valid IP configuration". Any ideas on how to connect drive E:\ to the internet?.Thank-you.