diff --git a/src/Contracts/DataModels.ts b/src/Contracts/DataModels.ts
index 031a0686b..c913310a3 100644
--- a/src/Contracts/DataModels.ts
+++ b/src/Contracts/DataModels.ts
@@ -34,6 +34,7 @@ export interface DatabaseAccountExtendedProperties {
   capacity?: { totalThroughputLimit: number };
   locations?: DatabaseAccountResponseLocation[];
   postgresqlEndpoint?: string;
+  publicNetworkAccess?: string;
 }
 
 export interface DatabaseAccountResponseLocation {
diff --git a/src/Contracts/ExplorerContracts.ts b/src/Contracts/ExplorerContracts.ts
index b6d547660..fc689d248 100644
--- a/src/Contracts/ExplorerContracts.ts
+++ b/src/Contracts/ExplorerContracts.ts
@@ -37,6 +37,7 @@ export enum MessageTypes {
   OpenQuickstartBlade,
   OpenPostgreSQLPasswordReset,
   OpenPostgresNetworkingBlade,
+  OpenCosmosDBNetworkingBlade,
 }
 
 export { Versions, ActionContracts, Diagnostics };
diff --git a/src/Contracts/ViewModels.ts b/src/Contracts/ViewModels.ts
index dbca00fed..4e0da2898 100644
--- a/src/Contracts/ViewModels.ts
+++ b/src/Contracts/ViewModels.ts
@@ -186,7 +186,6 @@ export interface Collection extends CollectionBase {
   onDrop(source: Collection, event: { originalEvent: DragEvent }): void;
   uploadFiles(fileList: FileList): Promise<{ data: UploadDetailsRecord[] }>;
 
-  getLabel(): string;
   getPendingThroughputSplitNotification(): Promise<DataModels.Notification>;
 }
 
diff --git a/src/Explorer/Tabs/Tabs.tsx b/src/Explorer/Tabs/Tabs.tsx
index c64b6ed56..2536e51e6 100644
--- a/src/Explorer/Tabs/Tabs.tsx
+++ b/src/Explorer/Tabs/Tabs.tsx
@@ -1,3 +1,6 @@
+import { MessageBar, MessageBarButton, MessageBarType } from "@fluentui/react";
+import { sendMessage } from "Common/MessageHandler";
+import { MessageTypes } from "Contracts/ExplorerContracts";
 import { CollectionTabKind } from "Contracts/ViewModels";
 import Explorer from "Explorer/Explorer";
 import { SplashScreen } from "Explorer/SplashScreen/SplashScreen";
@@ -21,10 +24,24 @@ interface TabsProps {
 }
 
 export const Tabs = ({ explorer }: TabsProps): JSX.Element => {
-  const { openedTabs, openedReactTabs, activeTab, activeReactTab } = useTabs();
+  const { openedTabs, openedReactTabs, activeTab, activeReactTab, showNetworkSettingsWarning } = useTabs();
 
   return (
     <div className="tabsManagerContainer">
+      {showNetworkSettingsWarning && (
+        <MessageBar
+          messageBarType={MessageBarType.warning}
+          actions={
+            <MessageBarButton onClick={() => sendMessage({ type: MessageTypes.OpenCosmosDBNetworkingBlade })}>
+              Change network settings
+            </MessageBarButton>
+          }
+          messageBarIconProps={{ iconName: "WarningSolid", className: "messageBarWarningIcon" }}
+        >
+          The Network settings for this account are preventing access from Data Explorer. Please allow access from Azure
+          Portal to proceed.
+        </MessageBar>
+      )}
       <div id="content" className="flexContainer hideOverflows">
         <div className="nav-tabs-margin">
           <ul className="nav nav-tabs level navTabHeight" id="navTabs" role="tablist">
diff --git a/src/Explorer/Tree/Collection.ts b/src/Explorer/Tree/Collection.ts
index f2fff2a99..d09ca57f5 100644
--- a/src/Explorer/Tree/Collection.ts
+++ b/src/Explorer/Tree/Collection.ts
@@ -1160,23 +1160,6 @@ export default class Collection implements ViewModels.Collection {
     this.onDocumentDBDocumentsClick();
   }
 
-  /**
-   * Get correct collection label depending on account API
-   */
-  public getLabel(): string {
-    if (userContext.apiType === "Tables") {
-      return "Entities";
-    } else if (userContext.apiType === "Cassandra") {
-      return "Rows";
-    } else if (userContext.apiType === "Gremlin") {
-      return "Graph";
-    } else if (userContext.apiType === "Mongo") {
-      return "Documents";
-    }
-
-    return "Items";
-  }
-
   public getDatabase(): ViewModels.Database {
     return useDatabases.getState().findDatabaseWithId(this.databaseId);
   }
diff --git a/src/Explorer/Tree/ResourceTree.tsx b/src/Explorer/Tree/ResourceTree.tsx
index 255c5412c..24eb34579 100644
--- a/src/Explorer/Tree/ResourceTree.tsx
+++ b/src/Explorer/Tree/ResourceTree.tsx
@@ -1,5 +1,6 @@
 import { Callout, DirectionalHint, ICalloutProps, ILinkProps, Link, Stack, Text } from "@fluentui/react";
 import * as React from "react";
+import { getItemName } from "Utils/APITypeUtils";
 import shallow from "zustand/shallow";
 import CosmosDBIcon from "../../../images/Azure-Cosmos-DB.svg";
 import DeleteIcon from "../../../images/delete.svg";
@@ -497,7 +498,7 @@ export const ResourceTree: React.FC<ResourceTreeProps> = ({ container }: Resourc
   const buildCollectionNode = (database: ViewModels.Database, collection: ViewModels.Collection): TreeNode => {
     const children: TreeNode[] = [];
     children.push({
-      label: collection.getLabel(),
+      label: getItemName(),
       id: collection.isSampleCollection ? "sampleItems" : "",
       onClick: () => {
         collection.openTab();
diff --git a/src/Explorer/Tree/ResourceTreeAdapter.tsx b/src/Explorer/Tree/ResourceTreeAdapter.tsx
index 1080da312..ffaa64778 100644
--- a/src/Explorer/Tree/ResourceTreeAdapter.tsx
+++ b/src/Explorer/Tree/ResourceTreeAdapter.tsx
@@ -1,6 +1,7 @@
 import { Callout, DirectionalHint, ICalloutProps, ILinkProps, Link, Stack, Text } from "@fluentui/react";
 import * as ko from "knockout";
 import * as React from "react";
+import { getItemName } from "Utils/APITypeUtils";
 import CosmosDBIcon from "../../../images/Azure-Cosmos-DB.svg";
 import DeleteIcon from "../../../images/delete.svg";
 import GalleryIcon from "../../../images/GalleryIcon.svg";
@@ -254,7 +255,7 @@ export class ResourceTreeAdapter implements ReactAdapter {
   private buildCollectionNode(database: ViewModels.Database, collection: ViewModels.Collection): TreeNode {
     const children: TreeNode[] = [];
     children.push({
-      label: collection.getLabel(),
+      label: getItemName(),
       onClick: () => {
         collection.openTab();
         // push to most recent
diff --git a/src/Utils/APITypeUtils.ts b/src/Utils/APITypeUtils.ts
index 0a7e8f9d1..dda1ecf24 100644
--- a/src/Utils/APITypeUtils.ts
+++ b/src/Utils/APITypeUtils.ts
@@ -74,3 +74,18 @@ export const getApiShortDisplayName = (): string => {
       return "Table API";
   }
 };
+
+export const getItemName = (): string => {
+  switch (userContext.apiType) {
+    case "Tables":
+      return "Entities";
+    case "Cassandra":
+      return "Rows";
+    case "Gremlin":
+      return "Graph";
+    case "Mongo":
+      return "Documents";
+    default:
+      return "Items";
+  }
+};
diff --git a/src/Utils/NetworkUtility.ts b/src/Utils/NetworkUtility.ts
new file mode 100644
index 000000000..d7c4ab1cc
--- /dev/null
+++ b/src/Utils/NetworkUtility.ts
@@ -0,0 +1,40 @@
+import { userContext } from "UserContext";
+
+const PortalIPs: { [key: string]: string[] } = {
+  prod1: ["104.42.195.92", "40.76.54.131"],
+  prod2: ["104.42.196.69"],
+  mooncake: ["139.217.8.252"],
+  blackforest: ["51.4.229.218"],
+  fairfax: ["52.244.48.71"],
+  ussec: ["29.26.26.67", "29.26.26.66"],
+  usnat: ["7.28.202.68"],
+};
+
+export const doNetworkSettingsAllowDataExplorerAccess = (): boolean => {
+  const accountProperties = userContext.databaseAccount?.properties;
+
+  if (!accountProperties) {
+    return false;
+  }
+
+  // public network access is disabled
+  if (accountProperties.publicNetworkAccess !== "Enabled") {
+    return false;
+  }
+
+  const ipRules = accountProperties.ipRules;
+  // public network access is set to "All networks"
+  if (ipRules.length === 0) {
+    return true;
+  }
+
+  const portalIPs = PortalIPs[userContext.portalEnv];
+  let numberOfMatches = 0;
+  ipRules.forEach((ipRule) => {
+    if (portalIPs.indexOf(ipRule.ipAddressOrRange) !== -1) {
+      numberOfMatches++;
+    }
+  });
+
+  return numberOfMatches === portalIPs.length;
+};
diff --git a/src/hooks/useKnockoutExplorer.ts b/src/hooks/useKnockoutExplorer.ts
index 94ff11343..56958daf7 100644
--- a/src/hooks/useKnockoutExplorer.ts
+++ b/src/hooks/useKnockoutExplorer.ts
@@ -1,5 +1,6 @@
 import { ReactTabKind, useTabs } from "hooks/useTabs";
 import { useEffect, useState } from "react";
+import { doNetworkSettingsAllowDataExplorerAccess } from "Utils/NetworkUtility";
 import { applyExplorerBindings } from "../applyExplorerBindings";
 import { AuthType } from "../AuthType";
 import { AccountKind, Flights } from "../Common/Constants";
@@ -381,6 +382,8 @@ function updateContextsFromPortalMessage(inputs: DataExplorerInputsFrame) {
     }
   }
 
+  useTabs.getState().setShowNetworkSettingsWarning(!doNetworkSettingsAllowDataExplorerAccess());
+
   if (inputs.features) {
     Object.assign(userContext.features, extractFeatures(new URLSearchParams(inputs.features)));
   }
diff --git a/src/hooks/useTabs.ts b/src/hooks/useTabs.ts
index 6a2885c09..7bc7fc031 100644
--- a/src/hooks/useTabs.ts
+++ b/src/hooks/useTabs.ts
@@ -9,6 +9,7 @@ interface TabsState {
   openedReactTabs: ReactTabKind[];
   activeTab: TabsBase | undefined;
   activeReactTab: ReactTabKind | undefined;
+  showNetworkSettingsWarning: boolean;
   activateTab: (tab: TabsBase) => void;
   activateNewTab: (tab: TabsBase) => void;
   activateReactTab: (tabkind: ReactTabKind) => void;
@@ -20,6 +21,7 @@ interface TabsState {
   closeAllNotebookTabs: (hardClose: boolean) => void;
   openAndActivateReactTab: (tabKind: ReactTabKind) => void;
   closeReactTab: (tabKind: ReactTabKind) => void;
+  setShowNetworkSettingsWarning: (showWarning: boolean) => void;
 }
 
 export enum ReactTabKind {
@@ -33,6 +35,7 @@ export const useTabs: UseStore<TabsState> = create((set, get) => ({
   openedReactTabs: [ReactTabKind.Home],
   activeTab: undefined,
   activeReactTab: ReactTabKind.Home,
+  showNetworkSettingsWarning: false,
   activateTab: (tab: TabsBase): void => {
     if (get().openedTabs.some((openedTab) => openedTab.tabId === tab.tabId)) {
       set({ activeTab: tab, activeReactTab: undefined });
@@ -142,4 +145,5 @@ export const useTabs: UseStore<TabsState> = create((set, get) => ({
 
     set({ openedReactTabs: updatedOpenedReactTabs });
   },
+  setShowNetworkSettingsWarning: (showWarning: boolean) => set({ showNetworkSettingsWarning: showWarning }),
 }));