The Connector has encountered an unexpected error
If you receive an error that says “The Connector has encountered an unexpected error” please also check if the NetTCPPortSharing service is in starting status but not successfully started. In some situations, NetTCPPortSharing service fail to start on XP client with .NET 4.0 installed. That may caused by several reasons including
1.LocalService account does not have proper access rights to the root of the C: drive
2.LocalService account does not have proper access rights to the C:\Windows\Microsoft.NET\Framework\V4.0.30319\SMSvcHost.exe.Config file 3. “The disk on which the C: Volume exists is a Dynamic disk”
You may be able to resolve this issue by perform the following steps:
1.Give LocalService account Read permission to C:\Windows\Microsoft.NET\Framework\V4.0.30319\SMSvcHost.exe.Config
2.OR Give LocalService Read and List Folder Contents permission to the root of C:
You may see this if you have used a repartitioning program to expand your c drive and it required you to change your C drive to a dynamic disk.
Prior to this we followed these posts where we used files from .net 3 and replaced them with files in .net 4. Please do not use this workaround anymore and instead use the recommendations above and adjust the permissions of the C drive above.
Please also see the client troubleshooting guide at http://social.technet.microsoft.com/wiki/contents/articles/3941.aspx
And review Robert Pearman’s great resource located at http://titlerequired.com/2011/09/27/troubleshooting-client-connector-install-sbs2011-essentials/
(putting this here for bingle juice)