I got that message on my iPad to keep a port open for the Wifi connection I used to follow the F1 race in Singapore. I found something here <http://www.codingmonkeys.de/portmap/ index.html> which I still have to install and test. Paul Moortgat On 28 Sep 2010, at 18:51, Eugene wrote: > On Sun, Sep 26, 2010 at 08:40:27PM CDT, Paul Moortgat <paul.moortgat at pandora.be > > wrote: >> >> When I used my iPad to follow the F1 race I got the message that >> there might be a problem with the connection and I would made sure >> that port 4321 (I guess) was free. >> How or where can I see if that port number is free? > > I don't know if there are iPhone/iPad apps that offer port monitoring. > > Outside of the device, it's an ISP issue cuz they can filter traffic. > > > -- > Eugene > http://www.coxar.pwp.blueyonder.co.uk/