SS2 - 42Amsterdam servers not visible In the Game

[SerialSam]

Hello
I would like to know what i have to add to see amsterdam42 servers?
because the list is Empty.
Thanks

[Ostap]

Hello
I would like to know what i have to add to see amsterdam42 servers?
because the list is Empty.
Thanks

Patch ? (link is on the front page)

[SerialSam]

Already install but I have Install Again but not Seen Servers
This game is not like other Serious Sam About servers and party seen.
The list is empty.
I hope play at this game one day in multiplayer.