Cannot Connect To Server


I Have strange problem my inferno mtk and inferno uni tool is working but

Merapi Tool
Volcano 3.0.9,
3.0.7
3.0.5
2.9.7
etc

are not working it says
Cannot connect to server, check whether the network is available, or use a proxy server.

Please Help

ps i tried using proxy and vpn bu its same please help i trued deleting volcano from registry but same and also i have tried to replace yellostone fle but same