diff --git a/ably/realtime_conn.go b/ably/realtime_conn.go
index 4c146034..8c862132 100644
--- a/ably/realtime_conn.go
+++ b/ably/realtime_conn.go
@@ -755,7 +755,7 @@ func (c *Connection) eventloop() {
 				c.mtx.Unlock()
 				return
 			}
-			// RTN23a
+			// RTN23a, RTN15a
 			c.lockSetState(ConnectionStateDisconnected, err, 0)
 			c.mtx.Unlock()
 			arg := connArgs{
@@ -871,7 +871,7 @@ func (c *Connection) eventloop() {
 					return
 				}
 				// RTN15h2, RTN22a
-				c.setState(ConnectionStateConnecting, newErrorFromProto(msg.Error), 0)
+				c.setState(ConnectionStateDisconnected, newErrorFromProto(msg.Error), 0)
 				c.reauthorize(connArgs{
 					lastActivityAt: lastActivityAt,
 					connDetails:    connDetails,
@@ -879,7 +879,7 @@ func (c *Connection) eventloop() {
 				return
 			}
 			// RTN15h3
-			c.setState(ConnectionStateConnecting, newErrorFromProto(msg.Error), 0)
+			c.setState(ConnectionStateDisconnected, newErrorFromProto(msg.Error), 0)
 			c.reconnect(connArgs{
 				lastActivityAt: lastActivityAt,
 				connDetails:    connDetails,
diff --git a/ably/realtime_conn_spec_integration_test.go b/ably/realtime_conn_spec_integration_test.go
index 9ab38666..45a35479 100644
--- a/ably/realtime_conn_spec_integration_test.go
+++ b/ably/realtime_conn_spec_integration_test.go
@@ -175,7 +175,6 @@ func Test_RTN4a_ConnectionEventForStateChange(t *testing.T) {
 			"fake disconnection failed: %v", err)
 
 		ablytest.Soon.Recv(t, nil, changes, t.Fatalf)
-
 	})
 
 	t.Run(fmt.Sprintf("on %s", ably.ConnectionStateSuspended), func(t *testing.T) {
@@ -1772,7 +1771,7 @@ func TestRealtimeConn_RTN15h3_Success(t *testing.T) {
 	ablytest.Instantly.Recv(t, &change, stateChanges, t.Fatalf)
 
 	assert.Equal(t, ably.ConnectionEventConnected, change.Event,
-		"expected UPDATED event; got %v", change)
+		"expected CONNECTED event; got %v", change)
 
 	// Expect no further events.break
 	ablytest.Instantly.NoRecv(t, nil, stateChanges, t.Fatalf)
@@ -1805,7 +1804,7 @@ func TestRealtimeConn_RTN15h_Integration_ClientInitiatedAuth(t *testing.T) {
 	assert.NoError(t, err)
 
 	for i := 0; i < 3; i++ {
-		err = ablytest.Wait(ablytest.ConnWaiter(realtime, nil, ably.ConnectionEventConnecting), nil)
+		err = ablytest.Wait(ablytest.ConnWaiter(realtime, nil, ably.ConnectionEventDisconnected), nil)
 		var errorInfo *ably.ErrorInfo
 		assert.Error(t, err)
 		assert.ErrorAs(t, err, &errorInfo)