When building my latest SharePoint 2010 demo virtual machines, I decided to try installing Exchange 2010 as well.  Now, I’m not an Exchange admin, but I thought “how hard can this be?”  Well, a little more than I thought.

Pretty early during the install, I got an error saying that it couldn’t “install Transport HUB”.  I double checked that my VM was meeting all of the requirements, both hardware and software, and everything looked fine.

After much researching, it turns out that the error was caused by not having IPv6 enabled on the network adapter inside the virtual machine.  I had turned it off because I thought I wouldn’t need it.  I guess Exchange 2010 does.