diff --git a/eng/pipelines/templates/pipeline-template-1es.yml b/eng/pipelines/templates/pipeline-template-1es.yml
index 6dbee082609..4c6c854ff0b 100644
--- a/eng/pipelines/templates/pipeline-template-1es.yml
+++ b/eng/pipelines/templates/pipeline-template-1es.yml
@@ -32,3 +32,5 @@ extends:
       featureFlags: ${{ parameters.featureFlags }}
     ${{ if parameters.sdl }}:
       sdl: ${{ parameters.sdl }}
+    settings:
+      networkIsolationPolicy: Permissive,CFSClean