It would help dramatically if we knew which operating system you're using. If you're refering to forwarding a port, then you will definitely need to set up a static ip 1st. If UPnP isn't doing the trick for you. If you're using a mac, see:
D-Link 504G instructions for Mac For windows see:
D-Link 604 port forwarding & follow the link to setting up a static ip 1st before forwarding
Port 6346 Last step is
Force IP instructions & sample image AND 2 posts after that. For windows that's LW's menu Tools>Options>Advanced>Firewalls & for mac that's LW Preferences>Advanced>Firewalls.
Another sample image
HERE!
So to re-iterate: 1. Set up Static IP. 2. Forward port 6346 with your router. 3. Force IP within LW.
By the way, Awaiting Sources signifies you've Resumed your incompletes which can be but is not the most effective way to continue them. It can also have side-FX if applied to too many.
Choose those with multiple star quality downld quality & multiple sources under the
# columns.