Hi,
Did you already connect to the game ?
Do you post from your computer with the issue ? Have you tried to switch off your firewall ? Your antivirus ? (if you have any)
If so, please post here the results for the following commands, using the Windows command prompt (shortcut : windows+r then type cmd and press enter) :
ping ns3002598.ovh.net
tracert ns3002598.ovh.net
What is the content of this address on your computer ?
http://ns3002598.ovh.net:20600/Dogs/GetLobbyServer/What is your account(Steam) nickname ?
Please, join your logs here (copy past their content : lua.log, dogsofwar.log, lobbymanager.log - all of them)