Password required to reach network

I’m using a my passport wireless for quite a long time with no problem.
And now without any reason, I can’t reach the device network because I’m asked for a password whereas i’ve never set any password!!!
I’m using an Ipad and the drive appears in the list of network but it appears as protected.
Thank you for you’re help!!!

Try manually resetting your unit. The following process is for a system-only reset that should not affect your data.

  1. Charge the battery to at least a 40%.

  2. With the power ON, hold down the Power and WPS buttons at the same time for around 10 seconds until the drive reboots and the Power and Battery Status LED flashes white.

  3. Wait until the Wi-Fi LED is blue before reconnecting.