if you are using OpenVPN please download the latest configs available from the dashboard. The current version of the config file forces the use of TLS 1.2. This change works on most devices.
In case you are using a particularly old version of OpenVPN or the OpenSSL library eg. on an embedded device like a NAS you can revert to a lower TLS version. You can also expect issues if you run ancient software releases on your phone / mobile devices. In any case we recommend to update the device(s) in question.
The IPredator team