You guys might be interested in knowing that only the GUI has had some fixes since 4.9.19. So connections, downloads, uploads behave the same since then. The main CORE programmer, here known as Zab is (I believe) on vacation right now. So as beta testers, we might want to focus on GUI issues until Zab returns
I can confirm the cannot be UP with UPnP activated. Even with ports open and no UPnP, LW as a leaf sometimes detect falsely a firewall. Don't worry for transfers though, with firewall to firewall transfers, there is no problem...
Ciao