Updates for 8692

Author: ryanberg-aquent

support/azure/app-service/socket-forbidden-access-permissions-message.md

@@ -0,0 +1,40 @@
+---
+title: An Attempt was Made to Access a Socket in a Way Forbidden by its Access Permissions Message 
+description: This article provides guidance on addressing "An attempt was made to access a socket in a way forbidden by its access permissions" message in Azure App Service. 
+author: JarrettRenshaw
+manager: dcscontentpm
+ms.topic: troubleshooting-general
+ms.date: 12/19/2025
+ms.author: jarrettr
+ms.reviewer: v-ryanberg
+ms.service: azure-app-service
+ms.custom: sap:Availability, Performance, and Application Issues
+---
+# "An attempt was made to access a socket in a way forbidden by its access permissions" message
+
+This article provides guidance on addressing "An attempt was made to access a socket in a way forbidden by its access permissions" message in Azure App Service. 
+
+## Symptom
+
+You see the message "An attempt was made to access a socket in a way forbidden by its access permissions."
+
+## Cause 1
+
+This error typically occurs if the outbound TCP connections on the virtual machine (VM) instance are exhausted. In App Service, limits are enforced for the maximum number of outbound connections that can be made for each VM instance. 
+
+## Solution 1
+
+For more information, see [Cross-VM numerical limits](https://github.com/projectkudu/kudu/wiki/Azure-Web-App-sandbox#cross-vm-numerical-limits).
+
+## Cause 2
+
+This error might also occur if you try to access a local address from your application. 
+
+## Solution 2
+
+For more information, see [Local address requests](https://github.com/projectkudu/kudu/wiki/Azure-Web-App-sandbox#local-address-requests).
+
+## Resources
+
+For more information about outbound connections in your web app, see the blog post about [outgoing connections to Azure websites](https://www.freekpaans.nl/2015/08/starving-outgoing-connections-on-windows-azure-web-sites/).
+

support/azure/app-service/toc.yml

@@ -17,6 +17,8 @@ items:
           href: ./capture-memory-dumps-app-service.md
         - name: Availability, performance, and application FAQs
           href: web-apps-performance-faqs.md
+        - name: An attempt was made to access a socket in a way forbidden by its access permissions message
+          href: socket-forbidden-access-permissions-message.md   
         - name: ASP.NET Core applications hosted in App Service stop responding
           href: asp-net-core-apps-stop-responding.md  
         - name: Error 403 - This web app is stopped message