diff --git a/src/IO.Ably.Shared/Defaults.cs b/src/IO.Ably.Shared/Defaults.cs
index c32dde171..f712d890f 100644
--- a/src/IO.Ably.Shared/Defaults.cs
+++ b/src/IO.Ably.Shared/Defaults.cs
@@ -45,8 +45,8 @@ internal static string GetVersion()
         public static readonly TimeSpan RealtimeRequestTimeout = TimeSpan.FromSeconds(10);
         public static readonly TimeSpan DisconnectedRetryTimeout = TimeSpan.FromSeconds(15);
         public static readonly TimeSpan SuspendedRetryTimeout = TimeSpan.FromSeconds(30);
-        public static readonly TimeSpan ConnectionStateTtl = TimeSpan.FromSeconds(60);
-        public static readonly TimeSpan FallbackRetryTimeout = TimeSpan.FromMinutes(10); // https://docs.ably.com/client-lib-development-guide/features/#TO3l10
+        public static readonly TimeSpan ConnectionStateTtl = TimeSpan.FromSeconds(120); // https://sdk.ably.com/builds/ably/specification/main/features/#DF1a
+        public static readonly TimeSpan FallbackRetryTimeout = TimeSpan.FromMinutes(10); // https://sdk.ably.com/builds/ably/specification/main/features/#TO3l10
 
         public static readonly ITransportFactory WebSocketTransportFactory = IoC.TransportFactory;
 
diff --git a/src/IO.Ably.Tests.Shared/Realtime/ConnectionSandBoxSpecs.cs b/src/IO.Ably.Tests.Shared/Realtime/ConnectionSandBoxSpecs.cs
index de27d73d8..7e872b37a 100644
--- a/src/IO.Ably.Tests.Shared/Realtime/ConnectionSandBoxSpecs.cs
+++ b/src/IO.Ably.Tests.Shared/Realtime/ConnectionSandBoxSpecs.cs
@@ -85,11 +85,17 @@ public async Task WhenClosingAConnection_ItShouldRaiseClosingAndClosedEvents(Pro
         [ProtocolData]
         public async Task ShouldSaveConnectionStateTtlToConnectionObject(Protocol protocol)
         {
-            var client = await GetRealtimeClient(protocol);
+            var client = await GetRealtimeClient(protocol, (options, _) => options.AutoConnect = false);
+            client.State.Connection.ConnectionStateTtl = TimeSpan.FromSeconds(60);
+            client.State.Connection.ConnectionStateTtl.Should().Be(TimeSpan.FromSeconds(60));
+            client.Connection.ConnectionStateTtl.Should().Be(TimeSpan.FromSeconds(60));
 
+            client.Connect();
             await WaitForState(client);
 
-            client.Connection.ConnectionStateTtl.Should().NotBe(Defaults.ConnectionStateTtl);
+            var connectMessage = client.GetTestTransport().ProtocolMessagesReceived.First(msg => msg.Action == ProtocolMessage.MessageAction.Connected);
+            connectMessage.ConnectionDetails.ConnectionStateTtl.Should().Be(TimeSpan.FromMinutes(2));
+            client.Connection.ConnectionStateTtl.Should().Be(TimeSpan.FromMinutes(2));
         }
 
         [Theory]