Glad its working.
Both LAN & WLAN can have separate firewall settings, which may be the cause of your issues.
Note to forum members :- If you ever have network issues, be it database connection, message server, etc, ALWAYS turn the firewalls OFF (this includes firewalls in internet security software too). On a local network there is no need to have firewalls running - your modem/router is your firewall, and make sure you have a decent password for wifi routers.