Use public IP only for Clustering mode.

backend/src/Squidex/Config/Orleans/OrleansServices.cs

@@ -70,6 +70,10 @@ namespace Squidex.Config.Orleans
             var orleansPortSilo = config.GetOptionalValue("orleans:siloPort", 11111);
             var orleansPortGateway = config.GetOptionalValue("orleans:gatewayPort", 40000);
 
+            config.ConfigureByOption("orleans:clustering", new Alternatives
+            {
+                ["MongoDB"] = () =>
+                {
                     var address = Helper.ResolveIPAddressAsync(Dns.GetHostName(), AddressFamily.InterNetwork).Result;
 
                     builder.ConfigureEndpoints(
@@ -78,10 +82,6 @@ namespace Squidex.Config.Orleans
                         orleansPortGateway,
                         true);
 
-            config.ConfigureByOption("orleans:clustering", new Alternatives
-            {
-                ["MongoDB"] = () =>
-                {
                     builder.UseMongoDBClustering(options =>
                     {
                         options.Configure(config);
@@ -89,7 +89,7 @@ namespace Squidex.Config.Orleans
                 },
                 ["Development"] = () =>
                 {
-                    builder.UseDevelopmentClustering(new IPEndPoint(address, orleansPortSilo));
+                    builder.UseLocalhostClustering(orleansPortSilo, orleansPortGateway);
                 }
             });