This is more likely a hardware issue than a setting problem. If the lower part of the image is in focus out to a long distance, the upper part at a similar distance should also be sharp. Since resetting the settings did not fix it, the most likely cause is that a lens element is physically misaligned or another internal optical part has shifted.

In short: this does not match normal autofocus behavior or a simple menu setting. It points to an internal lens/camera alignment problem that would usually require repair or replacement.