Hello,

If I try to include http://www.forum.joomgallery.net/index.php?type=rss;action=.xml as source, I am able to save it as rss feed but when I want to update the feed I always get an Error 403 Forbidden.

This source works for me just fine.

I still get an error message.
The complete error message is:
error loading feed content: cURL error 22: The requested URL returned error: 403 Forbidden

Any ideas?

I found the following feed:
https://forum.xda-developers.com/external.php?type=RSS2

I found the same one, but got the same error messages.

In the xda-developers forums there are a lot of threads about the rss topic, but none has a solution.