qBittorrent official forums

-Today I cannot get any torrents to move past "Stalled".
-My last successful torrent was last night around 2am.
-I had yet to update to version 3.3.12, so I upgraded, thinking that might help. It did not.
-I noticed my Connection status was yellow, so I googled it and tried a fix: Going to Options-Advanced-Network Interface-and changing it to match my connection. That did not work so I switched back to "Any Interface".
-Now my connection status is green and says Online, but my torrents are still Stalled. I know that they are being seeded because one is a very popular tv show and it is the same one that I was able to successfully download last night at 2am.
-I'm wondering if my ISP has blocked my torrent client or something, not too savvy with networking but I do use a VPN: PIA and it is working. Any help would be greatly appreciated.

I am having the exact same issue. I've been using QB for a few years now, never had any problems but the same day as above everything just started stalling. I've read the forums, made option changes to no avail. I am also wondering if this is specific to my ISP. And like OP, I also use PIA, and have never had any issues with connectivity, QBT, or PIA. If anyone has any thoughts/troubleshooting I'd love to hear some thoughts.

Same issue here.  About to quit using both qBitTorrent and PIA.