reporting services greyed out

[SCCMentor]

Hi there.

I've looked through all the articles regarding Reporting Services and can't get this working (although did in my test environment).

Data Source Settings greyed out Click Apply and get Unable to communicate with server. Server is on another box - tested and can connect on port 1433.

I get 'Chart control setup D:\Program Files (x86)\Microsoft Configuration Manager\bin\i386\DUNSETUP.EXE failed with return code 0x00000001. Installation cannot continue.' in the SRSRPSetup.log. I am using the default instance of MSSQLSERVER.

I have uninstalled the reporting service in SQL and re-installed and removed the reporting point and get the same error.

I have added in the network service to C:\Windows\Microsoft.NET\Framework64\v2.0.50727\Temporary ASP.NET Files and allowed full control on both the site server (hosting reporting point) and sql database. I have installed .Net Framework 3.5.1 feature on the site server.

I've tried installing onto another site system but fails.

I'm tempted to re-install SQL from scratch. How much impact would this have on my current SCCM install - would I need to recreated the SCCM databases or what other troubleshooting can you suggest?

Thanks