since 'etc. etc.' does not mean much I am assumimg from what you say that you got the message:

"an online connection could not be established. Please make sure your computer is correctly connected to the internet. A firewall may be blocking access."
rather than one of the other possibilities

Notwithstanding, it does not necessarily mean the program cannot access the internet, it might just mean it cannot establish a connection to the magix server, in which case you might be ok later

If it is blocked then third-party security software could also be doing that if you use any

If the activation serial number for WD11 begins with P3 then it is worth chaecking your magix account and deactiavting any activations there you don't need [including any previous activation for the same computer if there is one]