diff --git a/servers/Azure.Mcp.Server/changelog-entries/adwait-applens-signalr-endpoint.yml b/servers/Azure.Mcp.Server/changelog-entries/adwait-applens-signalr-endpoint.yml
new file mode 100644
index 0000000000..802004cdef
--- /dev/null
+++ b/servers/Azure.Mcp.Server/changelog-entries/adwait-applens-signalr-endpoint.yml
@@ -0,0 +1,3 @@
+changes:
+  - section: "Bugs Fixed"
+    description: "Updated AppLens conversational diagnostics to use the new SignalR endpoint."
diff --git a/tools/Azure.Mcp.Tools.AppLens/src/Services/AppLensService.cs b/tools/Azure.Mcp.Tools.AppLens/src/Services/AppLensService.cs
index 82d5cf79be..a11aaece65 100644
--- a/tools/Azure.Mcp.Tools.AppLens/src/Services/AppLensService.cs
+++ b/tools/Azure.Mcp.Tools.AppLens/src/Services/AppLensService.cs
@@ -531,10 +531,10 @@ private string GetConversationalDiagnosticsSignalREndpoint()
     {
         return _tenantService.CloudConfiguration.CloudType switch
         {
-            AzureCloudConfiguration.AzureCloud.AzurePublicCloud => "https://diagnosticschat.azure.com/chatHub",
+            AzureCloudConfiguration.AzureCloud.AzurePublicCloud => "https://diagnosticschatnext.azure.com/chathub",
             AzureCloudConfiguration.AzureCloud.AzureChinaCloud => "https://diagnosticschat.azure.cn/chatHub",
             AzureCloudConfiguration.AzureCloud.AzureUSGovernmentCloud => "https://diagnosticschat.azure.us/chatHub",
-            _ => "https://diagnosticschat.azure.com/chatHub",
+            _ => "https://diagnosticschatnext.azure.com/chathub",
         };
     }