Exchange 2013 SP1 - healthsets failing

Hi,

I have recently installed two Exchange 2013 SP1 servers in different environments and are experiencing issues on both. Issues that I haven't seen on Exchange 2013 without SP1.

I have 6 healthsets which are unhealthy. 

I found this article: 

http://technet.microsoft.com/en-us/library/ms.exch.scom.ecp.proxy(v=exchg.150).aspx

Which describes, that try to restart the app pool, then an iisreset - and lastly reboot the server. Tried all and none of them helped.

But then I found this error in the Exchang event log:

RecycleApplicationPool-MSExchangePowerShellAppPool-RpsDeepTestPSProxyRestart: Throttling rejected the operation

Which fails almost every minute.

And I guess that this could be the issue. But I can't figure out which throttling that is causing this.

Any one else with this issue on Exchange 2013 SP1?

Thanks in advance.

/Kim