@vladfail the only way of knowing what's happening is checking the tracker message, the problem can be the client or could be your network. most android clients simply ignore tracker message and only show "ok" or "error" which is not useful.
this app is the only one i could find that shows the tracker message: https://play.google.com/store/apps/details?id=hu.tagsoft.ttorrent.lite
try to download using it, if it doesn't work check the tracker tab to see if it is working. if it is working, it will just say "ok" and if it's not working you will see a red text below the tracker URL.