fix: disable connectivity listener causing spurious reconnects, rely on MQT...

Matthias Nott

10 days ago b2fef1bb1e005f6811a9f557c79f41a7a606f826

fix: disable connectivity listener causing spurious reconnects, rely on MQTT keepalive

 lib/services/mqtt_service.dart
..
..
@@ -107,35 +107,8 @@
107
107
     _intentionalClose = false;
108
108
     _setStatus(ConnectionStatus.connecting);
109
109
 
110
-    // Start listening for network changes (WiFi↔cellular, VPN connect/disconnect)
111
-    _connectivitySub ??= Connectivity().onConnectivityChanged.listen((results) {
112
-      if (_lastConnectivity != null && !_intentionalClose) {
113
-        final changed = results.length != _lastConnectivity!.length ||
114
-            !results.every((r) => _lastConnectivity!.contains(r));
115
-        if (changed) {
116
-          _mqttLog('MQTT: network changed: ${results.map((r) => r.name).join(",")} — forcing reconnect');
117
-          // Force disconnect and reconnect on new network
118
-          final client = _client;
119
-          if (client != null) {
120
-            _intentionalClose = true;
121
-            client.autoReconnect = false;
122
-            try { client.disconnect(); } catch (_) {}
123
-            _client = null;
124
-            _updatesSub?.cancel();
125
-            _updatesSub = null;
126
-            _intentionalClose = false;
127
-          }
128
-          _lastDiscoveredHost = null; // Clear cached discovery — subnet may have changed
129
-          connectedHost = null;
130
-          connectedVia = null;
131
-          _setStatus(ConnectionStatus.reconnecting);
132
-          Future.delayed(const Duration(milliseconds: 500), () {
133
-            if (!_intentionalClose) connect();
134
-          });
135
-        }
136
-      }
137
-      _lastConnectivity = results;
138
-    });
110
+    // Network change detection disabled — was causing spurious reconnects.
111
+    // MQTT keepalive + auto-reconnect handles dead connections reliably.
139
112
 
140
113
     // Load trusted cert fingerprint for TOFU verification
141
114
     if (_trustedFingerprint == null) await _loadTrustedFingerprint();