9th Generation iPad losses wifi network when it goes to sleep

About 50% of the time when my wife opens her 9th generation iPad it has lost the WiFi network. She has to toggle the WiFi switch in settings and it recovers. We have 2 iPad Pros, 2 iPhones, and an iPad Air none of which have the same problem. The same issue occurs when we visit of daughter and use her wifi network so i do not believe it is a network issue. Apple scheduled an appointment with the Geek Squad at BestBuy. The device did not lose the network connection the one time it was awoken so the Tech said it was a hardware issue. He recommended since it was less than 4 months old return it to the store for replacement. Target swapped it out for a new 9th generation. Same problem. My wife has followed all the instructions she has found to correct the issue to no avail. Very frustrating to have to toggle a switch almost everytime to use the iPad

iPad 9th generation is not on the drop-down list of devices it is not a 10th generation