I've been using Docker containers for ages now and not had an issue until now. If i try and add a new docker container (I've tried 3 so far) the connection is always refused and if i do a port scan of the Unraid server the new dockers containers show as closed/blocked but my existing containers ports are all showing open and work fine. I get the same result after a reboot. I always update to the latest stable release of unraid but it's been a while since i pulled a new contianer so i'm not sure at what point (version) it stopped working. 

 

Does anyone have any ideas or seen this issue before?

Using the same host ports as an already existing app?

Nope new/unused ports.

Have you tried other ports? You will have to give us more specific details. I think it is likely that whatever port you are trying is already in use.