When the Web Interface server is rebooted or an iisrest is given the first user who access the Web Interface has to wait longer than normal. In the background different worker process (Application Pools) are started. And the .NET framework does his magic thing.
To speeds up things a little bit, you can disable the check for digital signatures.
Open the file: “C:\Windows\Microsoft.NET\Framework (or Framework64)\v2.0.50727\Aspnet.config”
Add the line: <generatePublisherEvidence enabled=”false”/> (Watch out for the “” if you copy/paste the line )
Reboot the server or give a iisreset. Now the first user doesn’’t have to wait
But there is more. If you have a dedicated Web Interface server and the available resources aren’t that important. You can change the default 20 minutes of idle time per Application Pool to, for instance, 60 minutes.