diff --git a/scripts/realvnc-auth-bypass.nse b/scripts/realvnc-auth-bypass.nse
index f12c77a30..35fe1b328 100644
--- a/scripts/realvnc-auth-bypass.nse
+++ b/scripts/realvnc-auth-bypass.nse
@@ -26,7 +26,7 @@ action = function(host, port)
 	
 	status, result = socket:receive_lines(1)
 
-	if (result == "TIMEOUT") then
+	if (not status) then
 		socket:close()
 		return
 	end
@@ -34,29 +34,19 @@ action = function(host, port)
 	socket:send("RFB 003.008\n")
 	status, result = socket:receive_bytes(2)
 
-	if (result == "TIMEOUT") then
+	if (not status or result ~= "\001\002") then
 		socket:close()
 		return
 	end
 
-	if (result ~= "\001\002") then
-		socket:close()
-		return
-	end	
-
 	socket:send("\001")
 	status, result = socket:receive_bytes(4)
 
-	if (result == "TIMEOUT") then
+	if (not status or result ~= "\000\000\000\000") then
 		socket:close()
 		return
 	end
 
-	if (result ~= "\000\000\000\000") then
-		socket:close()
-		return
-	end	
-
 	socket:close()
 
 	return "Vulnerable"