updating

Author: billmath

articles/active-directory/hybrid/connect/how-to-connect-pta-faq.yml

@@ -174,7 +174,7 @@ sections:
           - Each request has a payload size of (0.5K + 1K * num_of_agents) bytes; that is, data from Azure AD to the Authentication Agent. Here, "num_of_agents" indicates the number of Authentication Agents registered on your tenant.
           - Each response has a payload size of 1K bytes; that is, data from the Authentication Agent to Azure AD.
           
-          For most customers, two or three Authentication Agents in total are sufficient for high availability and capacity. You should install Authentication Agents close to your domain controllers to improve sign-in latency.
+          For most customers, two or three Authentication Agents in total are sufficient for high availability and capacity. However, in production environments, we recommend that you have a minimum of 3 Authentication Agents running on your tenant. You should install Authentication Agents close to your domain controllers to improve sign-in latency.
           
           >[!NOTE]
           >There is a system limit of 40 Authentication Agents per tenant.