Same here with gnome-calculator 1:43.0.1-2 and libsoup-3.0-0 3.2.2-2. Messages on the console when WiFi is on: ** (gnome-calculator:39353): WARNING **: 09:11:55.567: currency-provider.vala:161: Couldn't download IMF currency rate file: HTTP/2 Error: INTERNAL_ERROR (gnome-calculator:39353): libsoup-WARNING **: 09:11:55.567: (../libsoup/soup-session.c:334):soup_session_dispose: runtime check failed: (soup_connection_manager_get_num_conns (priv->conn_manager) == 0) (gnome-calculator:39353): libsoup-WARNING **: 09:11:55.567: (../libsoup/soup-connection-manager.c:78):soup_host_free: runtime check failed: (host->conns == NULL) The same workarounds apply: before running the calculartor, turn the WiFi off or stop refreshing the exchange rates via $ gsettings set org.gnome.calculator refresh-interval 0 Whoever is responsible: shouldn't the bug reports be merged?