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Hi, We have a problem with the way xrootd decides whether a connection is a WAN connection. Some of the worker nodes at RAL are in the gridpp.rl.ac.uk domain and our xrootd servers are in the higher level domain rl.ac.uk. Jobs running on the machines in the gridpp subdomain fail because the refuse to connect to the different domain. lcg0338 - ~/work/anal21 $ KanCollUtil /store/PRskims/R14/14.4.0d/BFourBody/02/BFourBody_0291.01.root 041025 11:33:48 14069 Warn: XTNetConn::checkUrlDomain - Skipping url [root://csflnx108.rl.ac.uk///store/PRskims/R14/14.4.0d/BFourBody/02/BFourBod y_0291.01.root.01.root]. Its domain [.rl.ac.uk] differs from the client's one [.gridpp.rl.ac.uk]. 041025 11:33:48 14069 Err : XTNetFile::CTOR - All server specified are out of the client's domain. Going into zombie state. ERR Could not open a file expected to contain the event header: ERR LFN = /store/PRskims/R14/14.4.0d/BFourBody/02/BFourBody_0291.01.root.01.root ERR PFN = root://bbr-rdr01.rl.ac.uk//store/PRskims/R14/14.4.0d/BFourBody/02/BFourBody_ 0291.01.root.01.root ERR Check collection name and access method... Trying to fix this by adding Root.XTNetFileAllowWanConnect: 1 to an .rootrc file changes the error but does not fix the problem. lcg0338 - ~/work/anal21 $ KanCollUtil /store/PRskims/R14/14.4.0d/BFourBody/02/BFourBody_0291.01.root 041025 11:36:21 14080 Err : XTNetConn::handleServerError - Redirection to a server out-of-domain disallowed. Abort Aborted This is going to cause jobs to randomly fail at RAL, could the client be fixed to recognise that subdomains are not WAN connections. Thanks, Chris. -- Chris Brew ([log in to unmask]) +44 1235 446326 Particle Physics Department Rutherford Appleton Laboratory Chilton, Didcot. Oxfordshire. OX11 0QX. United Kingdom.