Why are my name servers not accepted?

If your name servers are not accepted, this is due in most cases to the fact that the name servers are not authoritive for your domain and do not announce your domain. The external name servers must be configured before your use it. In the case of doubt please contact your name server provider.

Does this article contains:

The information you are looking for?	Yes No
Information, wich is easy to understand?	Yes No
Enough details?	Yes No