03-29-2012 11:14 AM
Don’t know if anyone else had this issue however Enteo Net Reflect service will stop Lenovo X200t, x201, x220, and t420 from going to sleep when on AC power.. If you stop the Net Reflect Service the computer will sleep on AC but the service has to be restarted to use the remote enteo application. Enteo says the next version of enteo will fix that bug..
Was a Powercfg Command-Line Options That I was able to find the offending service
http://technet.microsoft.com/en-us/library/cc74894