Just posting this solution for a problem I had upgrading version 7.1.7 to version 8.2 on a 2012 R2 server. I ran through the installation which uninstalls the previous version and when the new version was online and I attempted to start the client software (on the same server) it would error that it could not connect. I noticed that I was unable to browser to logs from the system tray control for the server and subsequently found that the permissions on the log_interactivelogonCP20161001.txt file were corrupted. I could not view or change the security on this tile. I renamed the file to log_interactivelogonCP20161001.txt.OLD and restarted the VisualCron service, and I was then able to successfully connect the client to the server and all previously created tasks came online and worked. Hope someone else benefits from this information.