Download stops after a few seconds

[daprev47]

I'm a first time user/poster, so apologies if this is an ignorant question.

When trying to download NZB files, it starts fine but then a few seconds later it stops. I've tried various files of various ages and media types, and it's happening with all of them.

Any recommendations?

Thanks.

[shypike]

You're rather short on details.
Any error messages, warnings?
You do have an account with a Usenet provider?
You set your username/password etc.?

[daprev47]

I don't get any error messages or anything. It starts at solid speed, and then a few seconds later winds down to 0k/s, with no explanation why.

I use redorbnews and NZBMatrix for search.

I did set everything up with username/pw, and I'm assuming it's right since the download does in fact start.

Thanks for your help.

[shypike]

Release of SABnzbd?
Operating system?
Firewalls?
Which Usenet provider?