diff --git a/js/controllers/addresses.js b/js/controllers/addresses.js
index cef87776f..d53ff8ae1 100644
--- a/js/controllers/addresses.js
+++ b/js/controllers/addresses.js
@@ -9,8 +9,7 @@ angular.module('copayApp.controllers').controller('AddressesController',
       $scope.loading = true;
       w.generateAddress(null, function() {
         $timeout(function() {
-          controllerUtils.setSocketHandlers();
-          controllerUtils.updateAddressList();
+          controllerUtils.updateGlobalAddresses();
           $scope.loading = false;
         }, 1);
       });
diff --git a/js/controllers/sidebar.js b/js/controllers/sidebar.js
index ee356bb94..feebe40da 100644
--- a/js/controllers/sidebar.js
+++ b/js/controllers/sidebar.js
@@ -57,9 +57,6 @@ angular.module('copayApp.controllers').controller('SidebarController', function(
     return new Array(num);
   }
 
-  // Init socket handlers (with no wallet yet)
-  controllerUtils.setSocketHandlers();
-
   if ($rootScope.wallet) {
     $scope.$on('$idleWarn', function(a,countdown) {
       if (!(countdown%5))
diff --git a/js/models/blockchain/Insight.js b/js/models/blockchain/Insight.js
index 9c7fce321..16242ddbf 100644
--- a/js/models/blockchain/Insight.js
+++ b/js/models/blockchain/Insight.js
@@ -50,7 +50,7 @@ var Insight = function (opts) {
   var self = this;
   this.socket.on('connect', function() {
     self.status = self.STATUS.CONNECTED;
-    self.suscribeToBlocks();
+    self.subscribeToBlocks();
     self.emit('connect', 0);
   });
 
@@ -82,7 +82,7 @@ Insight.prototype.STATUS = {
 }
 
 /** @private */
-Insight.prototype.suscribeToBlocks = function() {
+Insight.prototype.subscribeToBlocks = function() {
   if (this.listeningBlocks || !this.socket.connected) return;
 
   var self = this;
@@ -132,9 +132,12 @@ Insight.prototype.subscribe = function(addresses) {
   addresses.forEach(function(address) {
     preconditions.checkArgument(new bitcore.Address(address).isValid());
 
-    self.subscribed.push(address);
-    self.socket.emit('subscribe', address);
-    self.socket.on(address, handlerFor(self, address));
+    // skip already subscibed
+    if (self.subscribed.indexOf(address) == -1) {
+      self.subscribed.push(address);
+      self.socket.emit('subscribe', address);
+      self.socket.on(address, handlerFor(self, address));
+    }
   });
 };
 
diff --git a/js/models/core/Wallet.js b/js/models/core/Wallet.js
index 1c3de8943..43fd21509 100644
--- a/js/models/core/Wallet.js
+++ b/js/models/core/Wallet.js
@@ -805,8 +805,6 @@ Wallet.prototype.sendTx = function(ntxid, cb) {
 
   var self = this;
   this.blockchain.broadcast(txHex, function(err, txid) {
-    if(err) throw err;
-
     self.log('BITCOIND txid:', txid);
     if (txid) {
       self.txProposals.get(ntxid).setSent(txid);
diff --git a/js/services/controllerUtils.js b/js/services/controllerUtils.js
index 6b3b32ca7..f7054383d 100644
--- a/js/services/controllerUtils.js
+++ b/js/services/controllerUtils.js
@@ -99,7 +99,7 @@ angular.module('copayApp.services')
     root.startNetwork = function(w, $scope) {
       root.setupRootVariables();
       root.installStartupHandlers(w, $scope);
-      root.setSocketHandlers();
+      root.updateGlobalAddresses();
 
       var handlePeerVideo = function(err, peerID, url) {
         if (err) {
@@ -120,7 +120,7 @@ angular.module('copayApp.services')
       });
       w.on('ready', function(myPeerID) {
         $rootScope.wallet = w;
-
+        root.setConnectionListeners();
 
         if ($rootScope.pendingPayment) {
           $location.path('send');
@@ -132,7 +132,7 @@ angular.module('copayApp.services')
       });
 
       w.on('publicKeyRingUpdated', function(dontDigest) {
-        root.setSocketHandlers();
+        root.updateGlobalAddresses();
         if (!dontDigest) {
           $rootScope.$digest();
         }
@@ -304,44 +304,38 @@ angular.module('copayApp.services')
       wallet.blockchain.on('disconnect', function() {
         notification.error('Networking problem', 'Connection to Insight lost, trying to reconnect...');
       });
+
+      wallet.blockchain.on('tx', function(tx) {
+        notification.funds('Funds received!', tx.address);
+        root.updateBalance(function() {
+          $rootScope.$digest();
+        });
+      });
+
+      if (!$rootScope.wallet.spendUnconfirmed) {
+        wallet.blockchain.on('block', function(block) {
+          root.updateBalance(function() {
+            $rootScope.$digest();
+          });
+        });
+      }
     }
 
-    root.setSocketHandlers = function() {
-      root.updateAddressList();
-
+    root.updateGlobalAddresses = function() {
       if (!$rootScope.wallet) return;
 
-      var currentAddrs = Socket.getListeners();
+      root.updateAddressList();
+      var currentAddrs = $rootScope.wallet.blockchain.getListeners();
       var allAddrs = $rootScope.addrInfos;
 
       var newAddrs = [];
       for (var i in allAddrs) {
         var a = allAddrs[i];
-        if (!currentAddrs[a.addressStr])
+        if (!currentAddrs[a.addressStr] && !a.isChange)
           newAddrs.push(a);
       }
       for (var i = 0; i < newAddrs.length; i++) {
-        Socket.emit('subscribe', newAddrs[i].addressStr);
-      }
-      newAddrs.forEach(function(a) {
-        Socket.on(a.addressStr, function(txid) {
-
-          if (!a.isChange)
-            notification.funds('Funds received!', a.addressStr);
-
-          root.updateBalance(function() {
-            $rootScope.$digest();
-          });
-        });
-      });
-
-      if (!$rootScope.wallet.spendUnconfirmed && !Socket.isListeningBlocks()) {
-        Socket.emit('subscribe', 'inv');
-        Socket.on('block', function(block) {
-          root.updateBalance(function() {
-            $rootScope.$digest();
-          });
-        });
+        $rootScope.wallet.blockchain.subscribe(newAddrs[i].addressStr);
       }
     };
     return root;
diff --git a/test/mocks/FakeBlockchain.js b/test/mocks/FakeBlockchain.js
index 1db31f97b..c6dd8ca4f 100644
--- a/test/mocks/FakeBlockchain.js
+++ b/test/mocks/FakeBlockchain.js
@@ -6,6 +6,10 @@ function FakeBlockchain(opts) {
   opts = opts || {};
 }
 
+FakeBlockchain.prototype.getTransaction = function(txid, cb) {
+  return cb(null, {txid: txid});
+};
+
 FakeBlockchain.prototype.getTransactions = function(addresses, cb) {
   return cb(null, []);
 };
diff --git a/test/test.Wallet.js b/test/test.Wallet.js
index 2386d3002..09dc4afe5 100644
--- a/test/test.Wallet.js
+++ b/test/test.Wallet.js
@@ -752,7 +752,7 @@ describe('Wallet model', function() {
     var utxo = createUTXO(w);
     w.blockchain.fixUnspent(utxo);
     w.createTx(toAddress, amountSatStr, null, function(ntxid) {
-      sinon.stub(w.blockchain, 'sendRawTransaction').yields(undefined);
+      sinon.stub(w.blockchain, 'broadcast').yields({statusCode: 303});
       var spyCheckSentTx = sinon.spy(w, '_checkSentTx');
       w.sendTx(ntxid, function () {});
       chai.expect(spyCheckSentTx.calledOnce).to.be.true;
diff --git a/test/test.blockchain.Insight.js b/test/test.blockchain.Insight.js
index eacc99808..a84b138bd 100644
--- a/test/test.blockchain.Insight.js
+++ b/test/test.blockchain.Insight.js
@@ -98,6 +98,14 @@ describe('Insight model', function() {
     emitSpy.calledWith('subscribe', 'mg7UbtKgMvWAixTNMbC8soyUnwFk1qxEuM');
   });
 
+  it('should subscribe to an address once', function() {
+    var blockchain = new Insight(FAKE_OPTS);
+
+    blockchain.subscribe('mg7UbtKgMvWAixTNMbC8soyUnwFk1qxEuM');
+    blockchain.subscribe('mg7UbtKgMvWAixTNMbC8soyUnwFk1qxEuM');
+    blockchain.subscribed.length.should.equal(1);
+  });
+
   it('should subscribe to a list of addresses', function() {
     var blockchain = new Insight(FAKE_OPTS);
     var emitSpy = sinon.spy(blockchain.socket, 'emit');
diff --git a/test/unit/services/servicesSpec.js b/test/unit/services/servicesSpec.js
index b7aa7041b..284719d3d 100644
--- a/test/unit/services/servicesSpec.js
+++ b/test/unit/services/servicesSpec.js
@@ -62,26 +62,26 @@ describe("Unit: controllerUtils", function() {
       expect($rootScope.unitName).to.be.equal('bits');
     });
   }));
-  describe("Unit: controllerUtils #setSocketHandlers", function() {
+  describe("Unit: controllerUtils #updateGlobalAddresses", function() {
 
 
     it(' should call updateAddressList ', inject(function(controllerUtils, $rootScope) {
       var spy = sinon.spy(controllerUtils, 'updateAddressList');
-      controllerUtils.setSocketHandlers();
+      controllerUtils.updateGlobalAddresses();
       sinon.assert.callCount(spy, 1);
     }));
 
     it('should update addresses', inject(function(controllerUtils, $rootScope) {
       $rootScope.wallet = new FakeWallet();
       var Waddr = Object.keys($rootScope.wallet.balanceByAddr)[0];
-      controllerUtils.setSocketHandlers();
+      controllerUtils.updateGlobalAddresses();
       expect($rootScope.addrInfos[0].address).to.be.equal(Waddr);;
     }));
 
     it('should set System Event Handlers', inject(function(controllerUtils, $rootScope, Socket) {
       var spy = sinon.spy(Socket, 'sysOn');
       $rootScope.wallet = new FakeWallet();
-      controllerUtils.setSocketHandlers();
+      controllerUtils.updateGlobalAddresses();
       sinon.assert.callCount(spy, 5);
       ['error', 'reconnect_error', 'reconnect_failed', 'connect', 'reconnect'].forEach(function(e) {
         sinon.assert.calledWith(spy, e);
@@ -92,7 +92,7 @@ describe("Unit: controllerUtils", function() {
       var spy = sinon.spy(Socket, 'on');
       $rootScope.wallet = new FakeWallet();
       var Waddr = Object.keys($rootScope.wallet.balanceByAddr)[0];
-      controllerUtils.setSocketHandlers();
+      controllerUtils.updateGlobalAddresses();
       sinon.assert.calledWith(spy, Waddr);
     }));
   });