Hello all
Just to let you guys know, AVG Internet Security Just updated ( Ver 17.3.3011 ) and they have a problem with their Firewall not allow Minecraft launchers to see or connect to any Minecraft servers. This includes standard MC launchers, Curse launchers, forge, and light loader. They are well aware of the problem and their forums are getting rather lively.
So if you Run AVG and the server are not showing up and looking like they are of line you will need to Disable the Firewall. In the New update the items like firewall are called Components.
Hope this help some one.