Thanks for the help but this seems to only work for one application and not all applications?
At least when I set the first application to port 443 that worked fine however, the second application assigned to a different IP but also on port 443 returned the same error. Unsure if I’ve done something wrong, if this is intended or a bug?
Edit: From what I gather it appears that Truenas keeps a list of used ports to prevent doubling up services on the same port. However, it doesn’t take into account the recent changes to the IP so it doesn’t consider the same port number across unique IP address.
Thanks for the help 