diff --git a/views/ngXosViews/diagnostic/src/css/diagnostic.css b/views/ngXosViews/diagnostic/src/css/diagnostic.css
index 4492faf..19d64a7 100644
--- a/views/ngXosViews/diagnostic/src/css/diagnostic.css
+++ b/views/ngXosViews/diagnostic/src/css/diagnostic.css
@@ -39,6 +39,14 @@
   padding: 10px;
 }
 
+diagnostic-container .onethird-height .well.pull-right{
+  position: absolute;
+  right: 0px;
+  top: -15px;
+  cursor: pointer;
+  z-index: 200;
+}
+
 
 /* subscriber-status-modal */
 subscriber-status-modal .row + .row {
diff --git a/views/ngXosViews/diagnostic/src/js/chart_data_service.js b/views/ngXosViews/diagnostic/src/js/chart_data_service.js
index c74e289..6f57ef0 100644
--- a/views/ngXosViews/diagnostic/src/js/chart_data_service.js
+++ b/views/ngXosViews/diagnostic/src/js/chart_data_service.js
@@ -70,6 +70,21 @@
       return this.logicTopologyData;
     };
 
+    /**
+    * Remove a subscriber from the tree
+    */
+   
+    this.removeSubscriber = () => {
+      this.logicTopologyData.children[0].children[0].children[0].children[0].humanReadableName = 'Subscriber';
+      this.currentSubscriber = null;
+      if(serviceTopologyConfig.elWidths[serviceTopologyConfig.elWidths.length - 1] === 160){
+        serviceTopologyConfig.elWidths.pop();
+      }
+
+      this.highlightInstances([]);
+      delete this.logicTopologyData.children[0].children[0].children[0].children[0].children;
+    }
+
     this.getSubscriberTag = (subscriber) => {
       const tags = {
         cTag: subscriber.c_tag,
diff --git a/views/ngXosViews/diagnostic/src/js/diagnostic.js b/views/ngXosViews/diagnostic/src/js/diagnostic.js
index 419dd7c..7d97fdb 100644
--- a/views/ngXosViews/diagnostic/src/js/diagnostic.js
+++ b/views/ngXosViews/diagnostic/src/js/diagnostic.js
@@ -10,23 +10,33 @@
 
         this.loader = true;
         this.error = false;
-        Subscribers.query().$promise
-        .then((subscribers) => {
-          this.subscribers = subscribers;
-          return ServiceRelation.get();
-        })
-        .then((serviceChain) => {
-          this.serviceChain = serviceChain;
-          // debug helper
-          loadSubscriber(this.subscribers[0]);
-        })
-        .catch(e => {
-          throw new Error(e);
-          this.error = e;
-        })
-        .finally(() => {
-          this.loader = false;
-        });
+        
+        const loadGlobalScope = () => {
+          Subscribers.query().$promise
+          .then((subscribers) => {
+            this.subscribers = subscribers;
+            return ServiceRelation.get();
+          })
+          .then((serviceChain) => {
+            this.serviceChain = serviceChain;
+            // debug helper
+            // loadSubscriber(this.subscribers[0]);
+          })
+          .catch(e => {
+            throw new Error(e);
+            this.error = e;
+          })
+          .finally(() => {
+            this.loader = false;
+          });
+        };
+
+        loadGlobalScope();
+
+        this.reloadGlobalScope = () => {
+          this.selectedSubscriber = null;
+          loadGlobalScope();
+        }
 
         const loadSubscriber = (subscriber) => {
           ServiceRelation.getBySubscriber(subscriber)
diff --git a/views/ngXosViews/diagnostic/src/js/logicTopology.js b/views/ngXosViews/diagnostic/src/js/logicTopology.js
index edd64ea..722328d 100644
--- a/views/ngXosViews/diagnostic/src/js/logicTopology.js
+++ b/views/ngXosViews/diagnostic/src/js/logicTopology.js
@@ -26,16 +26,23 @@
           .style('height', `${el.clientHeight}px`);
         }
 
-        ChartData.getLogicTree()
-        .then((tree) => {
-          LogicTopologyHelper.updateTree(svg);
-        });
+        const loadGlobalScope = () => {
+          ChartData.getLogicTree()
+          .then((tree) => {
+            LogicTopologyHelper.updateTree(svg);
+          });
+        }
+        loadGlobalScope();
 
         $scope.$watch(() => this.selected, (selected) => {
           if(selected){
             ChartData.selectSubscriber(selected);
             LogicTopologyHelper.updateTree(svg);
           }
+          else{
+            ChartData.removeSubscriber();
+            LogicTopologyHelper.updateTree(svg);
+          }
         });
 
         $rootScope.$on('instance.detail.hide', () => {
diff --git a/views/ngXosViews/diagnostic/src/js/nodeDrawer.js b/views/ngXosViews/diagnostic/src/js/nodeDrawer.js
index dcd7f4e..229b629 100644
--- a/views/ngXosViews/diagnostic/src/js/nodeDrawer.js
+++ b/views/ngXosViews/diagnostic/src/js/nodeDrawer.js
@@ -478,6 +478,10 @@
     };
 
     this.addPhisical = (nodes) => {
+
+      nodes.select('rect').remove();
+      nodes.select('text').remove();
+
       nodes.append('rect')
       .attr(serviceTopologyConfig.square);
 
diff --git a/views/ngXosViews/diagnostic/src/js/subscriber-modal.js b/views/ngXosViews/diagnostic/src/js/subscriber-modal.js
index 2911733..47b6a8d 100644
--- a/views/ngXosViews/diagnostic/src/js/subscriber-modal.js
+++ b/views/ngXosViews/diagnostic/src/js/subscriber-modal.js
@@ -42,6 +42,9 @@
         });
 
         $scope.$watch(() => this.subscriber, () => {
+          if(!this.subscriber){
+            return;
+          }
           this.subscriber.uplink_speed = parseInt(this.subscriber.uplink_speed, 10);
           this.subscriber.downlink_speed = parseInt(this.subscriber.downlink_speed, 10);
         });
diff --git a/views/ngXosViews/diagnostic/src/templates/diagnostic.tpl.html b/views/ngXosViews/diagnostic/src/templates/diagnostic.tpl.html
index 6ae3407..ffd5564 100644
--- a/views/ngXosViews/diagnostic/src/templates/diagnostic.tpl.html
+++ b/views/ngXosViews/diagnostic/src/templates/diagnostic.tpl.html
@@ -4,6 +4,9 @@
       <div class="well">
         Services Graph
       </div>
+      <div class="well pull-right" ng-click="vm.reloadGlobalScope()">
+        Reset subscriber
+      </div>
       <service-topology service-chain="vm.serviceChain"></service-topology>
     </div>
     <div class="twothird-height">
diff --git a/xos/core/xoslib/static/css/xosDiagnostic.css b/xos/core/xoslib/static/css/xosDiagnostic.css
index 8194cce..9d1befe 100644
--- a/xos/core/xoslib/static/css/xosDiagnostic.css
+++ b/xos/core/xoslib/static/css/xosDiagnostic.css
@@ -1 +1 @@
-#xosDiagnostic,[ui-view]{min-height:700px;position:relative}diagnostic-container .half-height{position:relative;height:50%}diagnostic-container .onethird-height{position:relative;height:33%;border-bottom:1px solid #999}diagnostic-container .twothird-height{position:relative;height:67%}diagnostic-container .subscriber-select{max-width:200px;position:absolute;top:20px;right:20px;z-index:1}diagnostic-container .onethird-height .well,diagnostic-container .twothird-height .well{font-weight:700;max-width:165px;text-align:center;margin-top:15px;background:#eee;border-color:steelblue;padding:10px}subscriber-status-modal .row+.row{margin-top:20px}.half-height+.half-height{border-top:1px solid black}service-topology,logic-topology{height:100%;width:100%;display:block;position:absolute;top:0}logic-topology .subscriber circle,logic-topology .device circle{fill:#fff;stroke:green;stroke-width:1px}logic-topology>svg{position:absolute;top:0}logic-topology .network .cloud{fill:#fff;stroke:green;stroke-width:1px}logic-topology .node.rack>g>rect{fill:#ccc;stroke:steelblue;stroke-width:1px}logic-topology .compute-node>rect{fill:#fff;stroke:steelblue;stroke-width:1px}logic-topology .instance>rect{fill:#eee;stroke:steelblue;stroke-width:1px}logic-topology .node .instance.active rect{fill:lightsteelblue;stroke:steelblue;stroke-width:1px}logic-topology .node .instance.active.good>rect{fill:green}logic-topology .node .instance.active.provisioning>rect{fill:yellow}logic-topology .node .instance.active.bad>rect{fill:red}logic-topology .node .instance .stats-container rect{fill:white}logic-topology .node .instance .stats-container text.name{font-weight:700}logic-topology .node .instance .stats-container text.ip{font-style:italic;font-size:10px}logic-topology .node .instance .stats-container .container rect{fill:#eee;stroke:steelblue;stroke-width:1px}.legend{fill:#fff;stroke:#ccc;stroke-width:1px;position:relative}.legend text{stroke:#000}.node{cursor:pointer}.node circle,.node rect{fill:#fff;stroke:steelblue;stroke-width:1px}.node.subscriber circle,.node.subscriber rect,.node.router circle,.node.router rect{stroke:#05ffcb}.node.slice rect{stroke:#b01dff}.node.instance rect{stroke:#ccc}.node.instance rect.active{stroke:#ff8b00}.node rect.slice-detail{fill:#fff;stroke:steelblue;stroke-width:3px}.node text{font:12px sans-serif}.node text.small{font-size:10px}.link,.device-link{fill:none;stroke:#ccc;stroke-width:2px}.link.slice{stroke:rgba(157,4,183,.29)}.link.instance{stroke:#ccc}.link.instance.active{stroke:rgba(255,138,0,.65)}.service-details{width:200px;position:absolute;top:20px;right:20px}.animate.ng-hide-remove{animation:.5s bounceInRight ease}.animate.ng-hide-add{animation:.5s bounceOutRight ease}.loader{font-size:10px;margin:150px auto;text-indent:-9999em;width:11em;height:11em;border-radius:50%;background:#fff;background:linear-gradient(to right,#fff 10%,rgba(255,255,255,0) 42%);position:relative;animation:load3 1.4s infinite linear;transform:translateZ(0)}.loader:before{width:50%;height:50%;background:#105e9e;border-radius:100% 0 0;position:absolute;top:0;left:0;content:''}.loader:after{background:#fff;width:75%;height:75%;border-radius:50%;content:'';margin:auto;position:absolute;top:0;left:0;bottom:0;right:0}@keyframes load3{0%{transform:rotate(0deg)}100%{transform:rotate(360deg)}}.modal.fade.in{display:block}@keyframes bounceInRight{from,60%,75%,90%,to{animation-timing-function:cubic-bezier(.215,.61,.355,1.000)}from{opacity:0;transform:translate3d(3000px,0,0)}60%{opacity:1;transform:translate3d(-25px,0,0)}75%{transform:translate3d(10px,0,0)}90%{transform:translate3d(-5px,0,0)}to{transform:none}}@keyframes bounceOutRight{20%{opacity:1;transform:translate3d(-20px,0,0)}to{opacity:0;transform:translate3d(2000px,0,0)}}
\ No newline at end of file
+#xosDiagnostic,[ui-view]{min-height:700px;position:relative}diagnostic-container .half-height{position:relative;height:50%}diagnostic-container .onethird-height{position:relative;height:33%;border-bottom:1px solid #999}diagnostic-container .twothird-height{position:relative;height:67%}diagnostic-container .subscriber-select{max-width:200px;position:absolute;top:20px;right:20px;z-index:1}diagnostic-container .onethird-height .well,diagnostic-container .twothird-height .well{font-weight:700;max-width:165px;text-align:center;margin-top:15px;background:#eee;border-color:steelblue;padding:10px}diagnostic-container .onethird-height .well.pull-right{position:absolute;right:0;top:-15px;cursor:pointer;z-index:200}subscriber-status-modal .row+.row{margin-top:20px}.half-height+.half-height{border-top:1px solid black}service-topology,logic-topology{height:100%;width:100%;display:block;position:absolute;top:0}logic-topology .subscriber circle,logic-topology .device circle{fill:#fff;stroke:green;stroke-width:1px}logic-topology>svg{position:absolute;top:0}logic-topology .network .cloud{fill:#fff;stroke:green;stroke-width:1px}logic-topology .node.rack>g>rect{fill:#ccc;stroke:steelblue;stroke-width:1px}logic-topology .compute-node>rect{fill:#fff;stroke:steelblue;stroke-width:1px}logic-topology .instance>rect{fill:#eee;stroke:steelblue;stroke-width:1px}logic-topology .node .instance.active rect{fill:lightsteelblue;stroke:steelblue;stroke-width:1px}logic-topology .node .instance.active.good>rect{fill:green}logic-topology .node .instance.active.provisioning>rect{fill:yellow}logic-topology .node .instance.active.bad>rect{fill:red}logic-topology .node .instance .stats-container rect{fill:white}logic-topology .node .instance .stats-container text.name{font-weight:700}logic-topology .node .instance .stats-container text.ip{font-style:italic;font-size:10px}logic-topology .node .instance .stats-container .container rect{fill:#eee;stroke:steelblue;stroke-width:1px}.legend{fill:#fff;stroke:#ccc;stroke-width:1px;position:relative}.legend text{stroke:#000}.node{cursor:pointer}.node circle,.node rect{fill:#fff;stroke:steelblue;stroke-width:1px}.node.subscriber circle,.node.subscriber rect,.node.router circle,.node.router rect{stroke:#05ffcb}.node.slice rect{stroke:#b01dff}.node.instance rect{stroke:#ccc}.node.instance rect.active{stroke:#ff8b00}.node rect.slice-detail{fill:#fff;stroke:steelblue;stroke-width:3px}.node text{font:12px sans-serif}.node text.small{font-size:10px}.link,.device-link{fill:none;stroke:#ccc;stroke-width:2px}.link.slice{stroke:rgba(157,4,183,.29)}.link.instance{stroke:#ccc}.link.instance.active{stroke:rgba(255,138,0,.65)}.service-details{width:200px;position:absolute;top:20px;right:20px}.animate.ng-hide-remove{animation:.5s bounceInRight ease}.animate.ng-hide-add{animation:.5s bounceOutRight ease}.loader{font-size:10px;margin:150px auto;text-indent:-9999em;width:11em;height:11em;border-radius:50%;background:#fff;background:linear-gradient(to right,#fff 10%,rgba(255,255,255,0) 42%);position:relative;animation:load3 1.4s infinite linear;transform:translateZ(0)}.loader:before{width:50%;height:50%;background:#105e9e;border-radius:100% 0 0;position:absolute;top:0;left:0;content:''}.loader:after{background:#fff;width:75%;height:75%;border-radius:50%;content:'';margin:auto;position:absolute;top:0;left:0;bottom:0;right:0}@keyframes load3{0%{transform:rotate(0deg)}100%{transform:rotate(360deg)}}.modal.fade.in{display:block}@keyframes bounceInRight{from,60%,75%,90%,to{animation-timing-function:cubic-bezier(.215,.61,.355,1.000)}from{opacity:0;transform:translate3d(3000px,0,0)}60%{opacity:1;transform:translate3d(-25px,0,0)}75%{transform:translate3d(10px,0,0)}90%{transform:translate3d(-5px,0,0)}to{transform:none}}@keyframes bounceOutRight{20%{opacity:1;transform:translate3d(-20px,0,0)}to{opacity:0;transform:translate3d(2000px,0,0)}}
\ No newline at end of file
diff --git a/xos/core/xoslib/static/js/xosDiagnostic.js b/xos/core/xoslib/static/js/xosDiagnostic.js
index 2c5ddf7..2d7b5d2 100644
--- a/xos/core/xoslib/static/js/xosDiagnostic.js
+++ b/xos/core/xoslib/static/js/xosDiagnostic.js
@@ -15,7 +15,7 @@
     $log.info('Diagnostic Started');
   }]);
 })();
-angular.module("xos.diagnostic").run(["$templateCache", function($templateCache) {$templateCache.put("templates/diagnostic.tpl.html","<div class=\"container-fluid\">\n  <div ng-hide=\"vm.error && vm.loader\" style=\"height: 900px\">\n    <div class=\"onethird-height\">\n      <div class=\"well\">\n        Services Graph\n      </div>\n      <service-topology service-chain=\"vm.serviceChain\"></service-topology>\n    </div>\n    <div class=\"twothird-height\">\n      <div class=\"well\">\n        Logical Resources\n      </div>\n      <logic-topology ng-if=\"vm.subscribers\" subscribers=\"vm.subscribers\" selected=\"vm.selectedSubscriber\"></logic-topology>\n    </div>\n  </div>\n  <div class=\"row\" ng-if=\"vm.error\">\n    <div class=\"col-xs-12\">\n      <div class=\"alert alert-danger\">\n        {{vm.error}}\n      </div>\n    </div>\n  </div>\n  <div class=\"row\" ng-if=\"vm.loader\">\n    <div class=\"col-xs-12\">\n      <div class=\"loader\">Loading</div>\n    </div>\n  </div>\n</div>");
+angular.module("xos.diagnostic").run(["$templateCache", function($templateCache) {$templateCache.put("templates/diagnostic.tpl.html","<div class=\"container-fluid\">\n  <div ng-hide=\"vm.error && vm.loader\" style=\"height: 900px\">\n    <div class=\"onethird-height\">\n      <div class=\"well\">\n        Services Graph\n      </div>\n      <div class=\"well pull-right\" ng-click=\"vm.reloadGlobalScope()\">\n        Reset subscriber\n      </div>\n      <service-topology service-chain=\"vm.serviceChain\"></service-topology>\n    </div>\n    <div class=\"twothird-height\">\n      <div class=\"well\">\n        Logical Resources\n      </div>\n      <logic-topology ng-if=\"vm.subscribers\" subscribers=\"vm.subscribers\" selected=\"vm.selectedSubscriber\"></logic-topology>\n    </div>\n  </div>\n  <div class=\"row\" ng-if=\"vm.error\">\n    <div class=\"col-xs-12\">\n      <div class=\"alert alert-danger\">\n        {{vm.error}}\n      </div>\n    </div>\n  </div>\n  <div class=\"row\" ng-if=\"vm.loader\">\n    <div class=\"col-xs-12\">\n      <div class=\"loader\">Loading</div>\n    </div>\n  </div>\n</div>");
 $templateCache.put("templates/logicTopology.tpl.html","<select-subscriber-modal open=\"vm.openSelectSubscriberModal\" subscribers=\"vm.subscribers\"></select-subscriber-modal>\n<subscriber-status-modal open=\"vm.openSubscriberStatusModal\" subscriber=\"vm.currentSubscriber\"></subscriber-status-modal>\n<div class=\"instances-stats animate\" ng-hide=\"vm.hideInstanceStats\">\n  <div class=\"row\">\n    <div class=\"col-sm-3 col-sm-offset-8\">\n      <div class=\"panel panel-primary\" ng-repeat=\"instance in vm.selectedInstances\">\n        <div class=\"panel-heading\">\n          {{instance.humanReadableName}}\n        </div>\n          <ul class=\"list-group\">\n            <li class=\"list-group-item\">Backend Status: {{instance.backend_status}}</li>\n            <li class=\"list-group-item\">IP Address: {{instance.ip}}</li>\n          </ul>\n          <ul class=\"list-group\">\n            <li class=\"list-group-item\" ng-repeat=\"stat in instance.stats\">\n              <span class=\"badge\">{{stat.value}}</span>\n              {{stat.meter}}\n            </li>\n          </ul>\n        </div>\n      </div>  \n    </div>\n  </div>\n</div>");
 $templateCache.put("templates/select-subscriber-modal.tpl.html","<div class=\"modal fade\" ng-class=\"{in: vm.open}\" tabindex=\"-1\" role=\"dialog\">\n  <div class=\"modal-dialog modal-sm\">\n    <div class=\"modal-content\">\n      <div class=\"modal-header\">\n        <button ng-click=\"vm.close()\"  type=\"button\" class=\"close\" data-dismiss=\"modal\" aria-label=\"Close\"><span aria-hidden=\"true\">&times;</span></button>\n        <h4 class=\"modal-title\">Select a subscriber:</h4>\n      </div>\n      <div class=\"modal-body\">\n        <select class=\"form-control\" ng-options=\"s as s.humanReadableName for s in vm.subscribers\" ng-model=\"vm.selected\"></select>\n      </div>\n      <div class=\"modal-footer\">\n        <button ng-click=\"vm.close()\" type=\"button\" class=\"btn btn-default\" data-dismiss=\"modal\">Close</button>\n        <button ng-click=\"vm.select(vm.selected)\" type=\"button\" class=\"btn btn-primary\">Select</button>\n      </div>\n    </div><!-- /.modal-content -->\n  </div><!-- /.modal-dialog -->\n</div><!-- /.modal -->");
 $templateCache.put("templates/subscriber-status-modal.tpl.html","<div class=\"modal fade\" ng-class=\"{in: vm.open}\" tabindex=\"-1\" role=\"dialog\">\n  <div class=\"modal-dialog modal-sm\">\n    <div class=\"modal-content\">\n      <div class=\"modal-header\">\n        <button ng-click=\"vm.close()\"  type=\"button\" class=\"close\" data-dismiss=\"modal\" aria-label=\"Close\"><span aria-hidden=\"true\">&times;</span></button>\n        <h4 class=\"modal-title\">Manage subscriber:</h4>\n      </div>\n      <form name=\"vm.subscriber-detail\">\n        <div class=\"modal-body\">\n          <div class=\"row\">\n            <div class=\"col-xs-12\">\n              <label>Status</label>\n            </div>\n            <div class=\"col-xs-6\">\n              <a ng-click=\"vm.subscriber.status = \'enabled\'\"\n                class=\"btn btn-block\"\n                ng-class=\"{\'btn-primary\': vm.subscriber.status === \'enabled\' ,\'btn-default\': vm.subscriber.status !== \'enabled\'}\"\n                >Enabled</a>\n            </div>\n            <div class=\"col-xs-6\">\n              <a ng-click=\"vm.subscriber.status = \'suspended\'\"\n                class=\"btn btn-block\"\n                ng-class=\"{\'btn-primary\': vm.subscriber.status === \'suspended\' ,\'btn-default\': vm.subscriber.status !== \'suspended\'}\"\n                >Suspended</a>\n            </div>\n          </div>\n          <div class=\"row\">\n            <div class=\"col-xs-6\">\n              <a ng-click=\"vm.subscriber.status = \'delinquent\'\"\n                class=\"btn btn-block\"\n                ng-class=\"{\'btn-primary\': vm.subscriber.status === \'delinquent\' ,\'btn-default\': vm.subscriber.status !== \'delinquent\'}\"\n                >Delinquent <br> payment</a>\n            </div>\n            <div class=\"col-xs-6\">\n              <a ng-click=\"vm.subscriber.status = \'copyrightviolation\'\"\n                class=\"btn btn-block\"\n                ng-class=\"{\'btn-primary\': vm.subscriber.status === \'copyrightviolation\' ,\'btn-default\': vm.subscriber.status !== \'copyrightviolation\'}\"\n                >Copyright <br> violation</a>\n            </div>\n          </div>\n          <div class=\"row\">\n            <div class=\"col-xs-6\">\n              <label>Uplink Speed</label>\n              <input type=\"number\" class=\"form-control\" ng-model=\"vm.subscriber.uplink_speed\"/>\n            </div>\n            <div class=\"col-xs-6\">\n              <label>Downlink Speed</label>\n              <input type=\"number\" class=\"form-control\" ng-model=\"vm.subscriber.downlink_speed\"/>\n            </div>\n          </div>\n          <div class=\"row\">\n            <div class=\"col-xs-6\">\n              <label>Enable Uverse</label>\n            </div>\n            <div class=\"col-xs-6\">\n              <a \n                ng-click=\"vm.subscriber.enable_uverse = !vm.subscriber.enable_uverse\" \n                ng-class=\"{\'btn-success\': vm.subscriber.enable_uverse, \'btn-danger\': !vm.subscriber.enable_uverse}\"\n                class=\"btn btn-block\">\n                <span ng-show=\"vm.subscriber.enable_uverse === true\">Enabled</span>\n                <span ng-show=\"vm.subscriber.enable_uverse !== true\">Disabled</span>\n              </a>\n            </div>\n          </div>\n        </div>\n        <div class=\"modal-footer\" ng-show=\"vm.success || vm.formError\">\n          <div class=\"alert alert-success\" ng-show=\"vm.success\">\n            {{vm.success}}\n          </div>\n          <div class=\"alert alert-danger\" ng-show=\"vm.formError\">\n            {{vm.formError}}\n          </div>\n        </div>\n        <div class=\"modal-footer\">\n          <button ng-click=\"vm.close()\" type=\"button\" class=\"btn btn-default\" data-dismiss=\"modal\">Close</button>\n          <button ng-click=\"vm.updateSubscriber(vm.subscriber)\" type=\"button\" class=\"btn btn-primary\">Save</button>\n        </div>\n      </form>\n    </div><!-- /.modal-content -->\n  </div><!-- /.modal-dialog -->\n</div><!-- /.modal -->");}]);
@@ -69,6 +69,9 @@
         $scope.$watch(function () {
           return _this2.subscriber;
         }, function () {
+          if (!_this2.subscriber) {
+            return;
+          }
           _this2.subscriber.uplink_speed = parseInt(_this2.subscriber.uplink_speed, 10);
           _this2.subscriber.downlink_speed = parseInt(_this2.subscriber.downlink_speed, 10);
         });
@@ -1263,6 +1266,10 @@
     };
 
     this.addPhisical = function (nodes) {
+
+      nodes.select('rect').remove();
+      nodes.select('text').remove();
+
       nodes.append('rect').attr(serviceTopologyConfig.square);
 
       nodes.append('text').attr({
@@ -1504,9 +1511,12 @@
           svg = d3.select(el).append('svg').style('width', el.clientWidth + 'px').style('height', el.clientHeight + 'px');
         };
 
-        ChartData.getLogicTree().then(function (tree) {
-          LogicTopologyHelper.updateTree(svg);
-        });
+        var loadGlobalScope = function loadGlobalScope() {
+          ChartData.getLogicTree().then(function (tree) {
+            LogicTopologyHelper.updateTree(svg);
+          });
+        };
+        loadGlobalScope();
 
         $scope.$watch(function () {
           return _this.selected;
@@ -1514,6 +1524,9 @@
           if (selected) {
             ChartData.selectSubscriber(selected);
             LogicTopologyHelper.updateTree(svg);
+          } else {
+            ChartData.removeSubscriber();
+            LogicTopologyHelper.updateTree(svg);
           }
         });
 
@@ -1583,19 +1596,29 @@
 
         this.loader = true;
         this.error = false;
-        Subscribers.query().$promise.then(function (subscribers) {
-          _this.subscribers = subscribers;
-          return ServiceRelation.get();
-        }).then(function (serviceChain) {
-          _this.serviceChain = serviceChain;
-          // debug helper
-          loadSubscriber(_this.subscribers[0]);
-        })['catch'](function (e) {
-          throw new Error(e);
-          _this.error = e;
-        })['finally'](function () {
-          _this.loader = false;
-        });
+
+        var loadGlobalScope = function loadGlobalScope() {
+          Subscribers.query().$promise.then(function (subscribers) {
+            _this.subscribers = subscribers;
+            return ServiceRelation.get();
+          }).then(function (serviceChain) {
+            _this.serviceChain = serviceChain;
+            // debug helper
+            // loadSubscriber(this.subscribers[0]);
+          })['catch'](function (e) {
+            throw new Error(e);
+            _this.error = e;
+          })['finally'](function () {
+            _this.loader = false;
+          });
+        };
+
+        loadGlobalScope();
+
+        this.reloadGlobalScope = function () {
+          _this.selectedSubscriber = null;
+          loadGlobalScope();
+        };
 
         var loadSubscriber = function loadSubscriber(subscriber) {
           ServiceRelation.getBySubscriber(subscriber).then(function (serviceChain) {
@@ -1743,6 +1766,21 @@
       return _this.logicTopologyData;
     };
 
+    /**
+    * Remove a subscriber from the tree
+    */
+
+    this.removeSubscriber = function () {
+      _this.logicTopologyData.children[0].children[0].children[0].children[0].humanReadableName = 'Subscriber';
+      _this.currentSubscriber = null;
+      if (serviceTopologyConfig.elWidths[serviceTopologyConfig.elWidths.length - 1] === 160) {
+        serviceTopologyConfig.elWidths.pop();
+      }
+
+      _this.highlightInstances([]);
+      delete _this.logicTopologyData.children[0].children[0].children[0].children[0].children;
+    };
+
     this.getSubscriberTag = function (subscriber) {
       var tags = {
         cTag: subscriber.c_tag,