diff --git a/windows/deployment/do/waas-delivery-optimization-faq.yml b/windows/deployment/do/waas-delivery-optimization-faq.yml
index b9eb742bb4..4495cdcc35 100644
--- a/windows/deployment/do/waas-delivery-optimization-faq.yml
+++ b/windows/deployment/do/waas-delivery-optimization-faq.yml
@@ -40,7 +40,7 @@ sections:
         answer: | 
           **For communication between clients and the Delivery Optimization cloud service**:
           
-          - `*.do.dsp.mp.microsoft.com`
+          - `*.prod.do.dsp.mp.microsoft.com`
 
           **For Delivery Optimization metadata**:
 
@@ -111,7 +111,7 @@ sections:
           The recommended configuration for Delivery Optimization Peer-to-Peer to work most efficiently along with cloud proxy solutions (e.g. Zscaler) is to allow traffic to the Delivery Optimization services to go directly to the internet and not through the cloud proxy.
           At a minimum, the following FQDN that is used for communication between clients and the Delivery Optimization service should be allowed with direct Internet access and bypass the cloud proxy service: 
 
-              •	*.do.dsp.mp.microsoft.com
+              •	*.prod.do.dsp.mp.microsoft.com
 
           If allowing direct Internet access is not an option, try using Group Download Mode '2' to define the peering group. [Learn more](waas-delivery-optimization-reference.md#select-the-source-of-group-ids) about using Group Download mode.
           
diff --git a/windows/deployment/do/waas-delivery-optimization-setup.md b/windows/deployment/do/waas-delivery-optimization-setup.md
index 04c0b9e893..49e1fd4447 100644
--- a/windows/deployment/do/waas-delivery-optimization-setup.md
+++ b/windows/deployment/do/waas-delivery-optimization-setup.md
@@ -140,7 +140,7 @@ Try these steps:
 
 1. Start a download of an app that is larger than 50 MB from the Store (for example "Candy Crush Saga").
 2. Run `Get-DeliveryOptimizationStatus` from an elevated PowerShell window and observe the [DODownloadMode](waas-delivery-optimization-reference.md#download-mode) setting. For peering to work, download mode should be 1, 2, or 3.
-3. If the download mode is 99, it could indicate your device is unable to reach the Delivery Optimization cloud services. Ensure that the Delivery Optimization host names are allowed access: most importantly **\*.do.dsp.mp.microsoft.com**.
+3. If the download mode is 99, it could indicate your device is unable to reach the Delivery Optimization cloud services. Ensure that the Delivery Optimization host names are allowed access: most importantly **\*.prod.do.dsp.mp.microsoft.com**.
 
 ### The cloud service doesn't see other peers on the network