Hey Binhex, I've been using quite a few of your containers for a couple of years now without any trouble up until now (thank you for the awesome containers and support!) Recently I decided to set up all of my rTorrent containers to use a VPN.. I know after 2 years it's long overdue but I exclusively use private trackers so it wasn't something I really worried about too much. I just want to note that I did get them up and running, but I start running into a lot of trouble when I don't use the Bridged network type. What I really want to use is use br0: Custom so I can set different IPs for all of the containers, but when I do that for rTorrent I can't access the webUI. I did however notice that the torrents will all start and show up as seeding according to the trackers I'm seeding content on. I can also ping the container from a different computer on my network, just can't connect to the webui or with Sonarr/Radarr.
Setting the network type to bridged allows me to connect to the webUI just fine, however, I still have issues with Sonarr and Radarr not being able to connect if they are on br0, so I have to set those to the bridged adapter as well. Before when I had the VPN option turned off on all of my rTorrent containers everything was working perfectly together on the br0 adapter.
I have already tried enabling iptable_mangle since you mentioned it for a similar issue in your Q&A, but it didn't seem to help. Do you have any insight as to what is going on here and how I can start using br0 with custom IPs for all of my containers again, or if it is even possible?