Since two days, when I want to check Updates, I get the error 11004: Valid Name, no data record of requested type.
Help!

I found the reason now. I have activated the option to "go through a proxy server to acess the internet".

Hello,

I had the same problem, when I tried to type in the URL of the proxy configuration file (that's possible in f.e. Firefox).
But in LiberKey you have to type in the real proxy URL. Then it works (for me).

All the best,
Thorsten