If your Usage and Health Data Collection Proxy is in a stopped state here is a quick bit of PowerShell to to get it started:
$sap = Get-SPServiceApplicationProxy | where-object {$_.TypeName -eq “Usage and Health Data Collection Proxy”}
$sap.Provision()
The above can easily be adapted to allow you to start any Service Application Proxy
what you can do if your SharePoint is sometimes very slow.
E.g.: on the first start of a Site
Sometimes during the day a search query will take about a minute until you get results…..
Just look on that article: http://support.microsoft.com/kb/2625048
it will improve “feeled” performance (site response times) massive, if you’re going to implement both solutions.
Disabling CRL Check is just necessary if the SP Server does not have internet connectivity, that means proxy settings must be configured for the server itself
http://technet.microsoft.com/de-de/library/bb430772(v=exchg.141).aspx, and your proxy must allow traffic from the server of course.
SharePoint Crawl Log Error: The SharePoint item being crawled returned an error when attempting to download the item for example .aspx files
1.Open Regedit on your search server/s
2.Navigate to this registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office Server\14.0\Search\Global\Gathering Manager
3.Change Value “UserAgent” from “MSIE 4.01” to “MSIE 8.0”
4.Restart the SharePoint Search Service.
5.Open a SharePoint PowerShell
6.Get-SPSessionStateService
7.If this returns false then we need to deploy one
Enable-SPSessionStateService -DatabaseName “NameOfDatabase”