Recently, over the past several days we have been experiencing 'File Not Saved' warnings with out any other informatrion about why the file cannot be SWC'ed; however, they can save locally. Previously we have recieved notifications that the Revit server is inaccessible due to some kind of network problem. This is new and strikes random machines working on the same model. At the time it strikes some machines can SWC while others cannot. They are not SWC'ing at the same time and we have tried with long periods between SWC's. The users are unable to SWC even after restaring Revit and when completely restarting their workstations. It does not necessarily affect the same machines. The only way they can start to work and SWC is to create a new local. We have not rolled out the new Hot Fix we are waiting until after a deadling incase anything goes wrong with the updates.