Snap services can select a free FerretDB port when the preferred port 27019 is occupied, but wekan.problems continued connecting to the old fixed default and reported ECONNREFUSED even while FerretDB and WeKan were active. The command now sources the services’ shared startup-network state and passes its resolved MONGO_URL to the report. An administrator’s explicit external database URL remains authoritative. Positive tests execute the real wrapper with a dynamic port and an external URL; negative coverage prevents the obsolete fixed port from returning to the wrapper.

WeKan 11.34 could leave an empty .startup-network.lock directory without its endpoint state file when a service stopped between acquiring the lock and the atomic state-file rename. Every later service then waited forever: snap showed the shell wrappers as active, but FerretDB never launched and port 27019 refused connections. New locks record their owner. A dead owner’s lock is reclaimed immediately, an older empty lock after a short grace period, and a live owner is never displaced. Waiting for a live owner is bounded and fails explicitly instead of presenting a permanently active service. Executable regressions cover both the exact empty-lock failure and a dead-owner lock.