Test Layout

I've been working with a larger client for the last several months on Active Directory (AD) issues. One of the ongoing small issues has been AD monitoring alerts generated in System Center Operations Manager (SCOM) when it appears nothing is actually wrong. The alerts were appearing intermittently on several of the servers, but not all. We were seeing alerts like this: Failed to ping or bind to the Infrastructure Master FSMO role holder AD Op Master Response : The script 'AD Op Master Response' could not determine the schema Op Master.The error returned was: 'LDAP://DC.contoso.com/RootDSE' (0x8007203A) Failed to ping or bind to the Schema Master FSMO role holder AD Op Master Response : The script 'AD Op Master Response' could not determine the schema Op Master.The error returned was: 'LDAP://DC.contoso.com/RootDSE' (0x8007203A) Failed to ping or bind to the RID Master FSMO role holder AD Op Master Response : The script 'AD Op Master Response'...

I'm doing some work with the release candidate of System Center 2012 - Operations Manager. It requires .NET Framework 4 and I made the mistake of installing .NET Framework 4 before installing IIS on the server. As a result, ASP.NET for .NET Framework 4 is not registered in IIS. Happily it's an easy fix: Open a command prompt Change to C:\Windows\Microsoft.NET\Framework64\v4.0.30319 Run aspnet_regiis.exe -i  After registering you still need to enable it in IIS Manager. Open IIS Manager and browse to the server Double-click ISAPI and CGI Restrictions Allow both ASP.NET v.4 instances Run iisreset.exe