We've got some devices at work which are Android 4.1 & 4.2 which are suddenly not connecting to our servers via the VF sim card,

We are getting an SSL handshake error, which I can only out surmise is attempting to use TLS 1.2 on these devices which don't support it.

This only happens on the VF connection, if I connect to office wifi, and another external connection we have the communications work fine.

Has anyone else noticed anything similar?