Trying to connect GlueTun (Prowlarr) to Sabnzbd (bridged-external) without success

Greetings!

Docker newbie here.

I have a QNAP TS-932PX which I am utilizing as a download box to process my arr applications. Normally i use sabnzbd to download media files, but sometimes the really difficult stuff to find is only available through torrents. Therefore I set up a docker container through Portainer that utilizing NordVPN protects qbitttorrent and prowlarr. Everything works as expected except there is no way for the Prowlarr app to connect to the normally bridged sabnzbd container.

I am enclosing a copy of the configs from the appropriate containers as I am sure that I am missing something, other than duplicating containers for VPN and non-VPN arr functions.

Thanks in advance for your help!