Some doors - e.g. for grid access - are located in the DMZ while the rest of the dCache instance is in the intranet. The firewall is configured in such a way that the doors cannot reach the location manager (usually on the admin node together with the pool manager) via port 11111 (or as configured in the variable serviceLocatorPort in config/lmSetup).

Please contact <support@dcache.org> if you need a solution for this problem.