The article referenced below discusses tips on fixes and changes for Microsoft System Center Operations Manager 2007 (OpsMgr 2007) Agent Health. The article also discusses hotfixes and registry keys. Be aware that these hotfixes and registry keys may not be noticed in your environment directly but might be causing issues of which you are not aware. The article is for Operations Manager 2007 SP1 and Operations Manager 2007 R2. For Operations Manager 2012, Operations Manager 2012 SP1, and Operations Manager 2012 R2 see the following article:
KB2843219 - System Center 2012 Operations Manager: Recommended agent operating system fixes and updates (http://support.microsoft.com/kb/2843219)
If you have an issue that affects agents that are in a gray (grey) state these tips and fixes may help, however if they do not then the following article may be helpful:
KB2288515 - Troubleshooting gray agent states in System Center Operations Manager (http://support.microsoft.com/kb/2288515).
For more details please see the following:
KB2616936 - Agent Health tips and fixes for System Center Operations Manager 2007 (http://support.microsoft.com/kb/2616936)
J.C. Hornbeck| Solution Asset PM | Microsoft GBS Management and Security Division
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