diff --git a/test/InterversionTests/MixedClusterTestBase.cs b/test/InterversionTests/MixedClusterTestBase.cs
index 30b8dd08e75..20d8e416a99 100644
--- a/test/InterversionTests/MixedClusterTestBase.cs
+++ b/test/InterversionTests/MixedClusterTestBase.cs
@@ -74,7 +74,7 @@ protected async Task<List<ProcessNode>> CreateCluster(string[] peers, X509Certif
                             if (--retries == 0) 
                                 throw new InvalidOperationException($"failed to add node '{processNode.Url}' to the cluster", e);
                             
-                            await Task.Delay(10);
+                            await Task.Delay(500);
                             continue;
                         }