So been having some fun with #BlackBerry and DCs only having the default NSPI setting of 50.
Wrote this to dump the NSPI registry key for all DCs
$currentdom = [System.DirectoryServices.ActiveDirectory.Domain]::getcurrentdomain()
$DCs = @(); $currentdom.DomainControllers | Sort Name | ForEach{$DCs += $_.name}
ForEach($item in $DCs){
$nspi=0
$srv = $item
Write-Host $srv –NoNewLine
$reg = [Microsoft.Win32.RegistryKey]::OpenRemoteBaseKey(‘LocalMachine’, $srv)
$regKey= $reg.OpenSubKey(“SYSTEM\\CurrentControlSet\\Services\\NTDS\\Parameters” )
$nspi = $regkey.GetValue(“NSPI max sessions per user”)
Write-Host “`tNSPI max sessions per user: ” $nspi
}