diff --git a/ui/scripts/system.js b/ui/scripts/system.js
index e5d53e2a4ac..37592294fac 100644
--- a/ui/scripts/system.js
+++ b/ui/scripts/system.js
@@ -1446,8 +1446,9 @@
 
 										//need to make 2 listNetworks API call to get all guest networks from one physical network in Advanced zone
 										var items = [];
+										//"listNetworks&projectid=-1": list guest networks under all projects (no matter who the owner is)
 										$.ajax({
-                      url: createURL("listNetworks&listAll=true&trafficType=Guest&zoneId=" + selectedZoneObj.id + "&physicalnetworkid=" + selectedPhysicalNetworkObj.id + "&page=" + args.page + "&pagesize=" + pageSize + array1.join("")),
+                      url: createURL("listNetworks&projectid=-1&trafficType=Guest&zoneId=" + selectedZoneObj.id + "&physicalnetworkid=" + selectedPhysicalNetworkObj.id + "&page=" + args.page + "&pagesize=" + pageSize + array1.join("")),
                       dataType: "json",
 											async: false,
                       success: function(json) {
@@ -1461,6 +1462,7 @@
 										  networkCollectionMap[this.id] = this.name;
 										});
 
+										//"listNetworks&listAll=true: list guest networks that are not under any project (no matter who the owner is)
 										$.ajax({
                       url: createURL("listNetworks&listAll=true&trafficType=Guest&zoneId=" + selectedZoneObj.id + "&physicalnetworkid=" + selectedPhysicalNetworkObj.id + "&page=" + args.page + "&pagesize=" + pageSize + array1.join("")),
                       dataType: "json",
@@ -1784,10 +1786,24 @@
 														project: { label: 'label.project' }
                           }
                         ],
-                        dataProvider: function(args) {			
+                        dataProvider: function(args) {	                         
+													var data = {
+													  id: args.context.networks[0].id
+													};
+													if(args.context.networks[0].projectid != null) {
+													  $.extend(data, {
+														  projectid: -1
+														});
+													}
+													else {
+													  $.extend(data, {
+														  listAll: true   //pass "&listAll=true" to "listNetworks&id=xxxxxxxx" for now before API gets fixed.
+														});
+													}
+												
 													$.ajax({
-														url: createURL("listNetworks&id=" + args.context.networks[0].id + "&listAll=true"), //pass "&listAll=true" to "listNetworks&id=xxxxxxxx" for now before API gets fixed.
-														dataType: "json",
+														url: createURL("listNetworks"), 
+														data: data,
 														async: false,
 														success: function(json) {														 
 															selectedGuestNetworkObj = json.listnetworksresponse.network[0];