Distributed environment problem (TC server and VCS connection)

Hi,

My build environment is located on server machines. I got TC server installed on computer A, TC agent on computer B and VCS (SVN) on computer C. Is the connection required between TC server (A) and VCS (C) when I want to checkout source code only on the agent (B) ? When I tried such architecture i got following error:

Unable to collect changes
java.util.concurrent.ExecutionException:  jetbrains.buildServer.vcs.VcsException: Problem collecting changes for  'XXX :: yyy' : org.tmatesoft.svn.core.SVNException: svn:  unknown host
svn: OPTIONS request failed on '/svn/zzz'

Is not it enough that TC agent can talk to VCS ?

Regards!