ddns not working

Tried to set-up ddns, frist with dyndns and second attempt with dyns.cx but both do not work. DDNS worked perfect with the original nas firmware so I recon it is not a router/modem problem.
Wednesday 09th of November 2011 05:33:26 PM,100.100.100.301
So you want to use the ftp server...The only thing I want to be able to do is to access my NAS files from the outside
So your host are updated on the provider?host is still ok because it is my IP
What are your forwarded ports ?I've forwared the ports but it still not works