Aidan Finn has a great blogpost that can help some folks remedy installation issues with Windows Intune! Note as per the blog post, after i configured WPAD my connectivity issues had gone away.
Note to configure Option 252 on a Microsoft DHCP Server you will need to follow this guide:
One of my biggest worries about running my fathers business’s Sharepoint (WSS) and Exchange (Packaged with SBS 2003) is the element of Backing up and Expandability. I always fear the day that i would get the dreaded phonecall (you know the one that all Administrators dread) in which email is offline or the sharepoint is offline / missing files. I have been lucky to date in that ive only had one failure in which i was able to use a backup to restore everything.