Properly configuring ruTorrent & Deluge

I bought a new dedi. server which runs Windows, so I installed Ubuntu 16.04 on VirtualBox and installed Quickbox on it. Everything is working just fine except:

  1. ruTorrent doesn’t download anything from public trackers (I did allow it while installing)
  2. Both ruTorrent & Deluge don’t upload anything(downloads just fine) on private trackers (I’ve peers and all, but they just don’t upload anything).

I’ve also got uTorrent running on the host OS(Windows), but it gets relatively slow speed even from seedbox peers.