Do you experience problems during downloading?
Check your connection in Status and Interface settings window.
Use Test Server in Config > Servers.
We will probably ask you to do a test using only basic settings.
Do you experience problems during repair or unpacking?
Enable +Debug logging in the Status and Interface settings window and share the relevant parts of the log here using [ code ] sections.
Please check with the place where you got the package from.
The SABnzbd team does not create packages for embedded systems,
so we don't know a lot about the subject.
Yes, but support should come from there as well.
Our software works, it's up to the Syno community to make a working package.
From your initial report I cannot see an obvious SABnzbd issue.
I have no idea how Syno packages work.
So please ask the Syno community.