iPads constantly dropping off signal

[SophieS1992]

We have 2 iPads in the home. 2 of which are connected to the wifi but constantly dropping signal and disconnecting from the wifi. Have done a speed test and everything seems fine. However, it shows that all other devices in the home are connected via WiFi. The 2 iPads with the issue are showing as being connected via a wired connection? They are not wired so wondering if this could be causing the issue. Does anybody have any advice? Never had this problem before and haven't knowingly changed any settings.