I thought that the problem might be that my internet service provider doesn't offer the possibility to have a "public IP address". Could that be the problem ? Could it be solved by putting DVD Profiler's collection on the internet (like google docs) ?

Tried, but it doesn't work, and I have turned off my firewall...

I'm having the same problem. I turned off the Windows firewall and the message "Unable to Connect" continues. It's frustrating to pay for an app that expensive and you can not use it for connection problems. There should be another way to transfer data, even if it was through physical connection (wire).

Afaik you must have an ip address... Go to

http://www.whatismyip.com/

Use the ip it gives you and as others suggested change to port 8080

Wait, are you trying to connect to your router at home from outside? That's the only scenario you would need a "public IP address", i.e. a static IP instead of a dynamic one (which is assigned every time the router establishes a new connection).

1) If you want to connect from outside your (W)LAN and you don't have a static IP, use a free dynamic DNS service (e.g. DynDNS.org or No-IP.com). But that only works, if you have access to the settings of your router and can add a port-forwarding to the machine DVD Profiler Desktop is running on.

2) If you are at home and the iPhone/iPod Touch/iPad has connection to the internet through your router, your desktop PC already has an IP address. Not a piblic one of course, since all devices are in the same local network = (W)LAN.
If you don't know the IP for the machine on which DVDP is running, press Win+R, type cmd , type ipconfig  and look for the IP address (most likely 192.168.something.something). Share your collection on port 80 (that's also used for standard HTTP connections, so if you can surf, it's most likely completely open).

If your router is really locked down by your provider and WLAN stations are separated from LAN stations by default, you won't be able to establish a connection at all. But honestly, even if you have hardware provided or subsidized by your ISP, it shouldn't be completely locked. That's not a sign of a good provider, IMHO.

I've posted some more trouble shooting questions here, please have a look at these, too.

Quoting Muckl:
If your router is really locked down by your provider and WLAN stations are separated from LAN stations by default, you won't be able to establish a connection at all. But honestly, even if you have hardware provided or subsidized by your ISP, it shouldn't be completely locked. That's not a sign of a good provider, IMHO.


My router is 100% locked and my internet service provider uses a "particular" way to connect the users to the internet.
We (users paying 120$ a month !!) have 2 IP addresses, one that is visible "inside" the ISP's network, and another (the one we use to go on the internet) is the same for all the subscribers: we get access to the internet through a NAT. It is a very fast connection, but for example, we have problems hosting a game.

recursive, have you tried connecting to your computer from the iPad using other means?  One simple method is to setup a VNC server and run a client on the iPad and see how stable the connection is.

Looking at the issues some people are having sharing collection, I think the method may need to be revisited. I can connect at home with no problem but can never connect from my office, even with all firewall disabled. Since this is an essential part of DVD Profiler seeing that the iOS app is not yet completely independent of the desktop, the sharing/sync should be made easier for everyone.

I have apps that connects to my desktop via wifi and never had this issue. I just key in the ip address provided by the app and it appears on my desktop, PC or Mac so I hope this can be just as simple. Just my 2 cents though I am relieved I finally could succesfully share my collection.