Our device uses a Wi-Fi connection (IEEE 802.11 n: 2.4 GHz) with an iPad. This happened only after iPadOS went from 14 to 15. After a short period of time, the Wi-Fi connection drops. If you reconnect, it stays connected for a while. However, it will be disconnected if you connect it after a while. We suspect that something is missing in the program implementation, but is it not? This problem has been bothering me for a long time, and I've been asking Apple TSI for a solution, but I haven't gotten any good results. They think it's because no one is in trouble. If it's happening on all your Wi-Fi connections, there's more It would have been a big problem. Perhaps the reason so few people are having trouble is that this is a problem specific to IEEE 802.11 n: 2.4 GHz. If you know the solution, please let me know.
Wi-Fi connection (IEEE 802.11 n: 2.4 GHz) with an iPad.
Additional information about the problems we face. The occurrence procedure. (1) In the morning, turn on iPad and establish a Wi-Fi connection with the device. It will expire in about 15 seconds. (2)If you connect again, nothing happens. (3)If you restart iPad, nothing happens. (4)Turn off the power and leave it until the next morning. (5)In the morning, turn on your iPad and connect it to a 2.4 GHz router. Communication is not interrupted. (6)Connect to the device from the router connection. It will expire in about 15 seconds. When our device is connected to the iPad, it sends about 25 kbyte images 14 times per second.