I am receiving event id 9175 on my front end exchange server. When I open system manager from either the FE or BE server and navigate to the front end server, I receive Access denied, facility Win32-ID no 80070005-Exchange SYstem Manager. Last week, we had a problem with a corrupt GPO and we had to apply some of Microsoft's default GPO's. Prior to that, I was able to navigate to both the FE and BE servers without any errors. I have tried several KB articles with no luck.