SV4.1 version 800xA system License Problem
I assume your system has been working several years ?
The CLS service is executing with a user account, which does not work any more.
It can depend on Password expired (which has to be deselected in User configuration), or, if you eg are running on a Domain, that the CLS server machine is removed from the domain.
The user has to be local administrator if I remember correct.
Today we always are using 800xA Service Account (800xAService) as user for CLS, but when 4.1 was released it was a normal solution to create an own user for CLS. If you want to you can use the service account for CLS service, but then you have to do it on all servers/clients.
In order, try the following:
0) Verify that http://localhost return IIS "under construction" web page in IE on AS1. If not, reinstall IIS.
1) In Start->Run... services.msc redefine 800xA service account for ABB Client License Service
2) Remove and reinstall ABB Client License software from CD or other media