zenon Web-Client 7 -> Web-Server 6.22 slow startup

zenon Web-Client 7 -> Web-Server 6.22 slow startup

Hello!
A customer installed a new Windows 7 64bit client PC with IE10 inside his warehouse.
We installed a zenon 7 Web-Client which is connecting to a zenon 6.22 Web-Server and Runtime.
Unfortunately it takes quite long to start up the web-client (2-5 minutes)
Is there a known issue or something we can do about it?

This is a migrated post! Originally posted on 24.09.2013 by user kicker. Please be aware that information can be outdated.