diff --git a/windows/keep-secure/troubleshoot-windows-defender-advanced-threat-protection.md b/windows/keep-secure/troubleshoot-windows-defender-advanced-threat-protection.md
index aa3238f1aa..a24b695473 100644
--- a/windows/keep-secure/troubleshoot-windows-defender-advanced-threat-protection.md
+++ b/windows/keep-secure/troubleshoot-windows-defender-advanced-threat-protection.md
@@ -22,5 +22,32 @@ This section addresses issues that might arise as you use the service.
 If you encounter a server error when trying to access the service, you’ll need to change your browser cookie settings.
 Configure your browser to allow cookies.
 
+### No data is shown on the portal
+If no data is displayed on the Dashboard portal even if no errors were encountered in the portal logs or in the browser console, you'll need to whitelist TI and DA endpoints and detonation endpoints that also use the this protocol.
+
+QUESTIONs TO NAMAA:
+- what dos TI AND DA stand for
+- what are we referring to when we say "this protocol"
+thanks, joey
+
+
+Depending on your region, add the following endpoints to the whitelist:
+
+U.S. region:
+- threatintel-cus-prd.cloudapp.net
+- threatintel-eus-prd.cloudapp.net
+- dataaccess-cus-prd.cloudapp.net
+- dataaccess-eus-prd.cloudapp.net
+- daasmon-eus-prd.cloudapp.net
+- daasmon-cus-prd.cloudapp.net
+
+EU region:
+
+- threatintel-neu-prd.cloudapp.net
+- threatintel-weu-prd.cloudapp.net
+- dataaccess-neu-prd.cloudapp.net
+- dataaccess-weu-prd.cloudapp.net
+
+
 ### Related topic
 - [Troubleshoot Windows Defender Advanced Threat Protection onboarding issues](troubleshoot-onboarding-windows-defender-advanced-threat-protection.md)