![The Techanic: ADFS 2012 R2 Web Application Proxy servers in Load Balanced Configuration loses trust with ADFS farm (Event ID 422). The Techanic: ADFS 2012 R2 Web Application Proxy servers in Load Balanced Configuration loses trust with ADFS farm (Event ID 422).](https://3.bp.blogspot.com/-oe7QPoL7DSI/U-kVanqhaKI/AAAAAAAAK10/KlvdgmtGXtw/s1600/ADFS-Design.png)
The Techanic: ADFS 2012 R2 Web Application Proxy servers in Load Balanced Configuration loses trust with ADFS farm (Event ID 422).
![Pre-authenticating external clients in non-claims-aware applications with the Server 2012 R2 ADFS Web Application Proxy | Codit Pre-authenticating external clients in non-claims-aware applications with the Server 2012 R2 ADFS Web Application Proxy | Codit](https://www.codit.eu/wp-content/uploads/2014/05/Img1.png)
Pre-authenticating external clients in non-claims-aware applications with the Server 2012 R2 ADFS Web Application Proxy | Codit
![A Real-world tested Approach for Transitioning AD FS Servers - The things that are better left unspoken A Real-world tested Approach for Transitioning AD FS Servers - The things that are better left unspoken](https://dirteam.com/sander/wp-content/uploads/sites/2/2020/04/ADFS.png)
A Real-world tested Approach for Transitioning AD FS Servers - The things that are better left unspoken
![Windows Server 2012 R2 Web Application Proxy and ADFS 3.0 Azure Lab – Roy Kim on Azure and Microsoft 365 Windows Server 2012 R2 Web Application Proxy and ADFS 3.0 Azure Lab – Roy Kim on Azure and Microsoft 365](https://roykimsharepoint.files.wordpress.com/2016/05/capture.jpg?w=1200)
Windows Server 2012 R2 Web Application Proxy and ADFS 3.0 Azure Lab – Roy Kim on Azure and Microsoft 365
![Tutorial - Add an on-premises app - Application Proxy in Azure Active Directory - Microsoft Entra | Microsoft Learn Tutorial - Add an on-premises app - Application Proxy in Azure Active Directory - Microsoft Entra | Microsoft Learn](https://learn.microsoft.com/en-us/azure/active-directory/app-proxy/media/application-proxy-add-on-premises-application/app-proxy-diagram.png)
Tutorial - Add an on-premises app - Application Proxy in Azure Active Directory - Microsoft Entra | Microsoft Learn
![High availability federated authentication Phase 4 Configure web application proxies - Microsoft 365 Enterprise | Microsoft Learn High availability federated authentication Phase 4 Configure web application proxies - Microsoft 365 Enterprise | Microsoft Learn](https://learn.microsoft.com/en-us/microsoft-365/media/7e03183f-3b3b-4cbe-9028-89cc3f195a63.png?view=o365-worldwide)