diff --git a/Cassandra.ThriftClient/Connections/ClusterConnection.cs b/Cassandra.ThriftClient/Connections/ClusterConnection.cs
index 32efbc9..13a79c6 100644
--- a/Cassandra.ThriftClient/Connections/ClusterConnection.cs
+++ b/Cassandra.ThriftClient/Connections/ClusterConnection.cs
@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.Diagnostics;
+using System.Linq;
 using System.Text;
 
 using SkbKontur.Cassandra.ThriftClient.Abstractions;
@@ -60,7 +61,13 @@ public void WaitUntilSchemaAgreementIsReached(TimeSpan timeout)
             {
                 var schemaAgreementCommand = new SchemaAgreementCommand();
                 commandExecutor.Execute(schemaAgreementCommand);
-                if (schemaAgreementCommand.Output.Count == 1)
+                if (schemaAgreementCommand.Output.ContainsKey(unreachableVersion))
+                {
+                    logger.Error("Found unreachable version");
+                    LogVersions(schemaAgreementCommand.Output);
+                }
+
+                if (schemaAgreementCommand.Output.Keys.Count(x => x != unreachableVersion) == 1)
                     return;
                 LogVersions(schemaAgreementCommand.Output);
             } while (sw.Elapsed < timeout);
@@ -76,6 +83,7 @@ private void LogVersions(IDictionary<string, List<string>> versions)
             logger.Info(stringBuilder.ToString());
         }
 
+        private const string unreachableVersion = "UNREACHABLE";
         private readonly ICommandExecutor<IFierceCommand> commandExecutor;
         private readonly ILog logger;
     }