jadegiant: Try the workaround from the post prior to this one from Taro94. That's an offline solution; you never have to connect online after you download the file from the vault.
Engerek01: Thank you. I already checked Taro's link but it says use it only if you bought these Modules while they were on sale. Which I didnt so I am reluctant to use them.
On the other hand these modules hadn't been available anywhere for years - so anyone who bought Neverwinter Nights after they stopped being sold didn't even have a chance to buy them. And the only reason why GOG don't include them in the NN collection is because of licencing issues.
If EA wanted or could sell these premium modules they would have done so years ago, as they continued to sell them until Atari ordered them (at the time Bioware) to stop selling them within one day in 2009 or so, which they did. And even if they would manage to somehow re-acquire the rights, given that now they shut down the master authentication server, they obviously have no desire to bring them back. Even people who legally bought them can't play them without the patch - if they did plan to re-acquire the rights to sell the modules, they wouldn't permanently shut the server down.
So unless you use this workaround you'll never be able to play them because you'll never be able to buy them.