- Do not believe if lost network becomes immediately available again.

app/src/main/kotlin/com/tutpro/baresip/BaresipService.kt

@@ -50,6 +50,7 @@ class BaresipService: Service() {
     internal var audioFocused = false
     internal var origCallVolume = -1
     internal val btAdapter = BluetoothAdapter.getDefaultAdapter()
+    internal var activeNetwork: Network? = null
 
     override fun onCreate() {
 
@@ -81,17 +82,27 @@ class BaresipService: Service() {
                         super.onAvailable(network)
                         val linkProperties = cm.getLinkProperties(network)
                         Log.i(LOG_TAG, "Network $network is available: '$linkProperties'")
+                        if (activeNetwork == null) {
+                            Log.i(LOG_TAG, "Updating dnsServers and linkAddresses")
+                            activeNetwork = network
                             dnsServers = linkProperties.dnsServers
                             linkAddresses = linkProperties.linkAddresses
                         }
+                    }
 
                     override fun onLost(network: Network) {
                         super.onLost(network)
-                        Log.d(LOG_TAG, "Network '$network' is lost")
+                        if (activeNetwork == network) {
-                        val allNetworks = cm.allNetworks
+                            Log.d(LOG_TAG, "Active network '$network' is lost")
-                        if (allNetworks.size > 0) {
+                            activeNetwork = null
-                            Log.d(LOG_TAG, "Network ${allNetworks[0]} is available")
+                            for (net in cm.allNetworks)
-                            val linkProperties = cm.getLinkProperties(allNetworks[0])
+                                if (net != network) {
+                                    Log.d(LOG_TAG, "New network $net is available")
+                                    activeNetwork = net
+                                    break
+                                }
+                            if (activeNetwork != null) {
+                                val linkProperties = cm.getLinkProperties(activeNetwork)
                                 if (dynDns) {
                                     dnsServers = linkProperties.dnsServers
                                     if (Config.updateDnsServers(dnsServers) != 0)
@@ -101,13 +112,18 @@ class BaresipService: Service() {
                                 Utils.updateLinkAddresses()
                                 UserAgent.register()
                             }
+                        } else {
+                            Log.d(LOG_TAG, "Network '$network' is lost")
+                        }
                     }
 
                     override fun onLinkPropertiesChanged(network: Network, linkProperties: LinkProperties) {
                         super.onLinkPropertiesChanged(network, linkProperties)
-                        Log.e(LOG_TAG, "Network $network link properties changed: $linkProperties")
                         if (!isServiceRunning)
                             return
+                        if (network == activeNetwork) {
+                            Log.e(LOG_TAG, "Active network $network link properties changed: " +
+                                    "$linkProperties")
                             if (dynDns) {
                                 dnsServers = linkProperties.dnsServers
                                 if (Config.updateDnsServers(dnsServers) != 0)
@@ -116,6 +132,10 @@ class BaresipService: Service() {
                             linkAddresses = linkProperties.linkAddresses
                             Utils.updateLinkAddresses()
                             // UserAgent.register()
+                        } else {
+                            Log.e(LOG_TAG, "Network $network link properties changed: " +
+                                    "$linkProperties")
+                        }
                     }
                 }
         )