O Juniper é atualmente não é compatível com o Windows 8.1 .
Quando as plataformas SSL VPN e as plataformas UAC da Juniper Network suportam o Windows 8.1 (codinome Windows Blue) como um cliente compatível para se conectar às plataformas SA e MAG SSL VPN?
Juniper Networks is in the final stages of qualification process and releasing software that supports Windows 8.1 and IE11 (schedule as listed below) In the interim if you are experiencing an issue with the features that are going to be supported and if the issue is not listed below then please report it to Juniper by opening a support case