Hi

The desktop version is an entirely separate program from the iOS app, it is free to download but has a limitation of (I believe) 50 discs before you are required to update to the paid version, you do NOT get the desktop version for free when you buy the app. However I am not sure if the free version has the ability to share collections or not. Take a look in Tools-> Options-> Sharing in the free version and see if you can tic share my collection on the network. If you can along the bottom of the frame when the window is open it should say shared on "your PC name" with your IP address and connection status. This status will normally say 0 connected unless you are syncing with your iDevice. If that shows up then the next thing you need to check is if you can actually talk to the PC there is another thread here called DVD Profiler connection test you should look through and try some of the suggestion there to get yourself connected.

Quoting Ken Cole:

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The number one reason for an inability to connect, if the firewall is off or set to allow the connection, is the wi-fi router settings.  Some routers are set by default to segregate the wireless traffic from your wired traffic.  Check for this setting in your router's configuration.

I can't connect between my laptop (wireless, XP-pro) and my ipod touch (wireless) - both on the same subnet of the same wireless network with the firewall turned off.  On the other hand, my labtop CAN see all of the other computers wired into the router (which is set to bridge the wired and wireless sides.

My impression is that there's a real problem here in some configurations that isn't a simple user / router issue.

Quoting Ken Cole:

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If your PC is wirelessly connected to the same wi-fi router, that should rule out the router as the culprit.  Have you set the connection to the IP address (not the computer name) shown in the bottom bar of DVD Profiler?  If not, try that.  If so, and if it's still not connecting, it's very likely being blocked by a software firewall.

LOL - yes, the server laptop is on 192.168.3.122 and the iPod touch is on 192.168.3.124 with both devices using the same default port.  The subnet mask is 255.255.255.0 with the router and DNS server address as 192.168.3.1 - the collection is not password protected.  The router rule is "pass all" - this allows both the laptop and the ipod touch full access to the internet - I can surf and pull down mail via IMAP SSL etc - everything works except DVDprofiler.  IP addresses are served by DHCP and remain consistent with leases renewing the same IP address each time.

The router/AP is an ALIX.2D13 box running pfSense so I have full control over the bridging of the wired/wireless nets and complete control over the rules affecting block/drop/pass of all packets - currently (trying to get DVDprofiler to work) these are set to "pass all"

Enabling or disabling the Windows firewall on the laptop (Lenovo T43 running XP-pro) makes no difference - DVDprofiler never transfers the collection.

My next step is to try connecting via another router somewhere - but I can't see any reason why it's not working with my setup.

Quoting 8ballMax:

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I see your laptop on 192.168.3.122 but your iPod Touch is on 192.168.3.124. Shouldn't they match?

Ah, I wasn't clear on that - sorry.  The laptop IP address is 192.168.3.122 and advertises its database on that address using the default port.  The iPod Touch IP address is 192.168.3.124 but the DVDprofiler "Connection Settings" are looking for a host on 192.168.3.122 which is where the master copy of my DVD collection database is located.

So each device has a unique IP address, the laptop PC simply advertises that it has a DVDprofile collection available and the iPod touch is expecting to connect to the PC address that I entered manually.

Well - if it was all working that's what should be happening ... 

Quoting SilentBob1138:

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Sounds like the router shouldn't be a problem. Could there be another program running with some sort of firewall in addition to the Windows firewall. Some antivirus software has a firewall included.

Good point!  However I'm not running any AV software on the laptop.  I've just turned "File Sharing" on (it was off) and that hasn't helped either.

It seems to be something about my laptop - I've installed DVDprofiler on another XP machine (running XP-home) that's wired into the router.  Transferring a collection of about 1000 DVD's took about an hour to the ipod touch and then another hour to update after I realized that the first collection didn't have the half dozen DVD's that we got for Christmas.

Is an hour about what you'd expect for 1000 DVD's?

But it is working via the router bridge between wired and wireless networks on another PC (XP-home) but not to the laptop (XP-pro) - I'll poke around with the safe mode and see if anything shows up.  Thanks for the suggestions.