I'm not able to play on Valkirienet: why?

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When I click on the Valkirienet (and I'm already connected to internet) the computer tries, tries, tries, tries, tries, tries, tries, tries, tries, tries, tries, tries, tries, tries, tries, tries, and doesn't succeed to connect me to anyone. Why? Am I doing something wrong? If "yes", how can I play through Valkirienet?
Thanks for your help.

 

[Mr.Bigglesworth]

Vnet may have been down when you tried to access it, it goes down every once in a while. If it happens all the time, you may have firewall issues. There is a sticky here with some info on how to deal with firewalls.