Solution? Many ( ~200,000 current users ) have no problems connecting! And you're talking to the wrong people--these forums are for other users like yourself. Sometimes the developers drop in and post here on their own time. Think of this place as a coffee shop bulletin board. As a Pro User, you're entitled to the free LW Pro Support

For those that do have problems, they can help by tracking down their personal situation and/or provide the details.

The developers are trying to hunt down the odd situations that might cause such problems (see http://groups.yahoo.com/group/the_gdf/ ) that can be "patched", but many of the problems are caused by:

Other Users--leechers actively blocked or kicked (share more than 100 files to get around this), or if your IP ended up on a blocklist somehow (no idea how to get around this one)

User setup--Firewalls blocking Connections on port 6346 (looks like you've fixed this). New System updates/patches can change settings that once worked.

--Routers--port 6346 blocked

--ISP's/Network Administrators (ask them if they still allow filesharing)

This is probably not news to you, but might help others. Good luck anyways, and do post back when you've figured out the problem. Too many dump thier problems here and don't bother to post their solutions back.