I am running a Windows 2008 R2 enviroment with SQL 2005 SP4 and SCCM 2007 R3. Recently i am getting the following error when pushing the client through Ad or manually installing

No valid source or MP locations could be indentified to download content from.Ccmsetup.exe cannot continue. ccmsetup 10/10/2013 10:08:14 AM 3520 (0x0DC0)

After i reboot the server i am good for a short period of time and then it happens again.

Have extended the active directory schema if so it should install what you mean here AD (active directory) ??

try installing manually IN cmd prompt by

C:\>Client\ccmsetup.exe /Source:"C:\Client" SMSMP=SERVERNAME SMSSLP=SERVERNAME SMSSITECODE=XYZ

Thank you for the reply, yes i have extened the scheme this server has been up and running for 3 years and it is only the last month or so i see this issue. If i restart the server all works for a period of time.

If client push works after a server reboot then the issue might not be with the client itself. Can you ping the primary site server using both netbios and fqd names from the client after it fails? Can you also ping the client from the primary site server?

also try removing all traces of the failed client installation by removing the directories like ccmsetup and ccm and restart setup.

Is there a firewall in the mix blocking communication?