Reporting service unable find in the Configuration manager

Hi all,

One of the customer complained that "he is unable to connect to reporting server".

When we checked on the configuration manager, we did not find the reporting services. we came to a conclusion like, it would been uninstalled. we said him that we need to install the Reporting services.

Now i started the add feature of the reporting service to the existing instance. While adding the Reporting service is already been checked and unable install.

Please suggest me some steps to proceed further.

Thanks

K