Secure connections check dates, because certificates are only valid for a set period. If your phone thinks it's a different day, for example after the battery was empty for a long time or after a reset, PryVPN can't verify our servers and doesn't connect.
- Open Android's Settings › System › Date & time (on Samsung: Settings › General management › Date and time).
- Turn on Set time automatically and Set time zone automatically.
- Go back to PryVPN and connect.
When PryVPN notices the clock is off, it tells you and offers a button that opens the date settings.