I tired it with windows firewall disabled. I Know I have Avira, Spybot, and Malwarebytes installed so I guess I should try it with everything disabled regardless whether it provides a firewall or not?
It shows it on the basic settings for WLAN but on the LAN settings the default is 255.255.255.0, but I have never had a issue with finding other PC's, notebooks, game consoles etc with this set up previously.
I am away for the next few days and not back till Sunday, so I will have to try these then, but thanks for your help so far.