SABnzbd Forums

I suspect there's something fishy with localhost.
This is a bit of a notorious problem.
Many operating systems define localhost as both an IPv4 (127.0.0.1) and IPv6 (::1) address.
The problem is that the OS and the web browsers don't always agree on whether
IPv4 or IPv6 should have priority.
Are you using Firefox and did you disable its IPv6 support?

The best thing to do is to use 127.0.0.1 as a host address.
We are working on a better solution, but we had trouble getting
it to work reliably on all platforms.