Installing Exchange 2010 on Server 2008 R2. Getting this "MSExchangeTransport failed to start" error. I did enable IPv6 on the network connection. Nothing in the event viewer jumps out at me. What to do? thanks, Hub Transport Role Failed Error: The following error was generated when "$error.Clear(); if ($RoleStartTransportService) { start-SetupService -ServiceName MSExchangeTransport }" was run: "Service 'MSExchangeTransport' failed to start. Check the event log for possible reasons for the service start failure.". Service 'MSExchangeTransport' failed to start. Check the event log for possible reasons for the service start failure. Elapsed Time: 00:03:01 Finalizing Setup Cancelled

that worked. I uninstalled as best I could, made sure ipv6 was checked and the NetTcpPortSharing service was set to automatic. Then did a reinstall. No errors this time.