cache user accounts

For FBA web application using claims, we should specifically use FBA user like 0#.f|abc|username for SuperReader and SuperUser accounts.

Choose two such accounts , preferably new one.

Visit user policy for web application  under central admin

With option all zones, give superUser Full Control and SuperReader Read rights.

Set superReader and SuperUser  fr caching by below mentioned powershell command :

$myWebApp = Get-SPWebApplication -Identity “<WebApplication>”
$myWebApp.Properties["portalsuperuseraccount"] = “<SuperUser>”
$myWebApp.Properties["portalsuperreaderaccount"] = “<SuperReader>”
$myWebApp.Update()

Now go for one IISRESET