question

Hello, i installed sql server 2008 R2 enterprise edition in Clustering mode.it was success. i needed to install reporting services as they are cluster unaware i installed new database engine along with reporting services.when i connect to the new named instance which has reporting services it was throwing error as follows: A network related or instance specific error occured while establishing a connection to sql server. the server was not found or was not accessible.verify that the instance name is correctand that sql server is configured to allow remote connections.(provider:named pipes provider,error: 40 - could not open connection to sql server) (Microsoft sql server, error:53) can any one suggest how to resolve this i checked in configuration manager 1433 port for tcp is used by default instance but the new named instance does not have any tcp port listed what to do.