Network Error on Cisco Clean Access Agent Program

I am encountering issues after forcing for an update on my Cisco Clean Access Agent program. When trying to use it, it has “Network Error! Detail: Unknown String” error and I can’t use the software. This runs on my Windows Vista 32-bit PC. I updated it to 4.1.2.4 and after that, it just started to run falsely. I tried to uninstall, re-install and run system restore but I was unlucky. How can I fix this?

