new urls in troubleshooting

windows/security/threat-protection/windows-defender-atp/configure-proxy-internet-windows-defender-advanced-threat-protection.md

@@ -90,7 +90,7 @@ If a proxy or firewall is blocking all traffic by default and allowing only spec
 
 Service location | Microsoft.com DNS record
 :---|:---
-Common URLs for all locations | ```*.blob.core.windows.net``` <br>```crl.microsoft.com```<br> ```ctldl.windowsupdate.com``` <br>```events.data.microsoft.com```<br>```https://*.microsoftonline-p.com```<br>```https://*.securitycenter.windows.com```<br>```https://automatediracs-eus-prd.securitycenter.windows.com```<br>```https://login.microsoftonline.com```<br>```https://login.windows.net```<br>```https://onboardingpackagescusprd.blob.core.windows.net```<br>```https://secure.aadcdn.microsoftonline-p.com```<br>```https://securitycenter.onmicrosoft.com```<br>```https://securitycenter.windows.com```<br>```https://static2.sharepointonline.com```<br>
+Common URLs for all locations | ```*.blob.core.windows.net``` <br>```crl.microsoft.com```<br> ```ctldl.windowsupdate.com``` <br>```events.data.microsoft.com```
 European Union | ```eu.vortex-win.data.microsoft.com```<br>```eu-v20.events.data.microsoft.com```<br>```winatp-gw-neu.microsoft.com```<br>```winatp-gw-weu.microsoft.com```
 United Kingdom | ```uk.vortex-win.data.microsoft.com``` <br>```uk-v20.events.data.microsoft.com```<br>```winatp-gw-uks.microsoft.com```<br>```winatp-gw-ukw.microsoft.com```
 United States | ```us.vortex-win.data.microsoft.com```<br> ```us-v20.events.data.microsoft.com```<br>```winatp-gw-cus.microsoft.com``` <br>```winatp-gw-eus.microsoft.com```

windows/security/threat-protection/windows-defender-atp/troubleshoot-onboarding-error-messages-windows-defender-advanced-threat-protection.md

@@ -72,5 +72,14 @@ If the portal dashboard, and other sections show an error message such as "Data
 You'll need to whitelist the `securitycenter.windows.com` and all sub-domains under it. For example `*.securitycenter.windows.com`.
 
 
+## Portal communication issues
+If you encounter issues with accessing the portal, missing data, or restricted access to portions of the portal, you'll need to verify that the following urls are whitelisted and open for communciation.
+
+- `*.blob.core.windows.net 
+crl.microsoft.com`
+- `https://*.microsoftonline-p.com`
+- `https://*.securitycenter.windows.com` 
+- `https://automatediracs-eus-prd.securitycenter.windows.com`
+- `https://login.microsoftonline.com`
 - `https://login.windows.net`
 - `https://onboardingpackagescusprd.blob.core.windows.net`