diff --git a/.azure/pipelines/release.yml b/.azure/pipelines/release.yml
index 66bb85072..a236f3a85 100644
--- a/.azure/pipelines/release.yml
+++ b/.azure/pipelines/release.yml
@@ -61,7 +61,7 @@ extends:
       eslint:
         enabled: false
     settings:
-      networkIsolationPolicy: Okay,GitHub,AzureFileCopy,NuGet,AzureStorage
+      networkIsolationPolicy: Permissive,CFSClean
     stages:
       - stage: Stage
         jobs:
@@ -105,6 +105,8 @@ extends:
                 inputs:
                   version: 10.x
                   performMultiLevelLookup: true
+              - task: NuGetAuthenticate@1
+                displayName: Authenticate to Azure Artifacts (VSOnline-Internal)
               - ${{ if or( eq(parameters.isFinalBuild, false),  eq(parameters.releaseSDKCore, true)) }}:
                 - task: DotNetCoreCLI@2
                   displayName: dotnet build AzureSignalR.sln
diff --git a/build/sources.props b/build/sources.props
index 72b1eaaa9..abd61a5ce 100644
--- a/build/sources.props
+++ b/build/sources.props
@@ -7,15 +7,27 @@
       $(MSBuildThisFileDirectory)packages;
       https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet-tools/nuget/v3/index.json;
     </RestoreSources>
-    <RestoreSources Condition="'$(DotNetBuildOffline)' != 'true'">
+    <RestoreSources Condition="'$(DotNetBuildOffline)' != 'true' AND '$(TF_BUILD)' != ''">
+      $(RestoreSources);
+      https://pkgs.dev.azure.com/mseng/VSJava/_packaging/azure-signalr-server-sdk/nuget/v3/index.json;
+    </RestoreSources>
+    <RestoreSources Condition="'$(DotNetBuildOffline)' != 'true' AND '$(TF_BUILD)' == ''">
       $(RestoreSources);
       https://api.nuget.org/v3/index.json;
     </RestoreSources>
-    <RestoreSources Condition="'$(UseLocalFeed)' == 'true'">
+    <RestoreSources Condition="'$(UseLocalFeed)' == 'true' AND '$(TF_BUILD)' != ''">
+      $(LocalFeed);
+      https://pkgs.dev.azure.com/mseng/VSJava/_packaging/azure-signalr-server-sdk/nuget/v3/index.json;
+    </RestoreSources>
+    <RestoreSources Condition="'$(UseLocalFeed)' == 'true' AND '$(TF_BUILD)' == ''">
       $(LocalFeed);
       https://api.nuget.org/v3/index.json;
     </RestoreSources>
-    <RestoreSources Condition="'$(AzureSignalRSDKE2ETest)' == 'true'">
+    <RestoreSources Condition="'$(AzureSignalRSDKE2ETest)' == 'true' AND '$(TF_BUILD)' != ''">
+      $(MSBuildThisFileDirectory)packages;
+      https://pkgs.dev.azure.com/mseng/VSJava/_packaging/azure-signalr-server-sdk/nuget/v3/index.json;
+    </RestoreSources>
+    <RestoreSources Condition="'$(AzureSignalRSDKE2ETest)' == 'true' AND '$(TF_BUILD)' == ''">
       $(MSBuildThisFileDirectory)packages;
       https://www.myget.org/F/azure-signalr-dev/api/v3/index.json;
       https://api.nuget.org/v3/index.json;