(ADD BELOW DOMAIN TO ALLOW THE WINDOWS OS TO CHECK IF INTERNET IS WORKING)
msftconnecttest.com
msftncsi.com
(OLD OUTDATED INFO IS BELOW)
The Windows Network Connectivity Status Indicator (NCSI) Network Awareness will:
Request to: http://www.msftncsi.com/ncsi.txt
Expects to Receive: Text containing "Microsoft NCSI"
Request for DNS name resolution of: dns.msftncsi.com
Expects to Resolve to: 131.107.255.255
(SOURCE)
https://technet.microsoft.com/en-us/library/cc766017(v=ws.10).aspx
(TAGS)
Limited or no connectivity
Yellow Exclamation Point on Network, PC, or Computer Icon