News group posting with GW2014R2SP1 (build: 124014)

I have a problem with the New Reader function in the GW-client.
I have added the Novell-news groups, as soon as I want to post or reply
I get always:
441 Posting Failed (Artivle NOt Posted to a Valid Newsgroup)

In older versios it works fine

p.s. This post is is done with a GW2014R2 client.