I migrated from SBS server 2008 to 2011 and the migration went fine. The company bought a brand new Dell server and everything went fine for about a month. Now the server keeps shutting off every 3 days and I'm afraid that it's going to start shutting down every hour. It's been about 4 months since we did the migration and I'm not sure if there was a problem or not. I have checked the event logs and haven't found any reason why the server is shutting down but can only think it has something to do with migration.
To add I also get a message the server cannot query power management configuration in the SBS console