Apple TV not showing up on AirPlay

I recently bought this Apple TV (model number A1427) secondhand and reset it.

All features work except for AirPlay and Screen Mirroring, the Apple TV just doesn't show up on my Phone on both share options. However the Apple TV does show up when i try to use my phone as a remote. Also a strange thing is that the Apple TV says it failed activation.

Just for the record i am connected on the same network, apple tv is on its latest possible version (7.9 - 8163), and the hdmi cable works for sound and display.