diff --git a/eng/pipelines/templates/stages/1es-redirect.yml b/eng/pipelines/templates/stages/1es-redirect.yml
index 41e73fddff94..fcc51483d8e9 100644
--- a/eng/pipelines/templates/stages/1es-redirect.yml
+++ b/eng/pipelines/templates/stages/1es-redirect.yml
@@ -40,6 +40,9 @@ extends:
         - 1ES.PT.Tag-refs/tags/canary
     settings:
       skipBuildTagsForGitHubPullRequests: true
+      # Set network isolation policy to Preferred to allow access to common public services like GitHub, NuGet, Maven Central, etc.
+      # https://eng.ms/docs/coreai/devdiv/one-engineering-system-1es/1es-build/cloudbuild/security/1espt-network-isolation#shared-policies-for-common-use-cases
+      networkIsolationPolicy: Permissive
     sdl:
       ${{ if and(eq(variables['Build.DefinitionName'], 'java - core'), eq(variables['Build.SourceBranchName'], 'main'), eq(variables['System.TeamProject'], 'internal')) }}:
         autobaseline: