IQ remote panels not staying connected to IQ2+

I have 2 remote panels and 1 IQ2+ main panel. For about the past week, the 2 remotes occasionally light up with a white screen saying that they can’t connect to the main panel. On both remotes I have to uncheck the wifi box, then check them again in order for them to reconnect to the main panel. All 3 panels are on the same wifi network with excellent wifi signal. Again, this has only started in the past 7-10 days, and my system has been active for over 2 months. Any thoughts on how to fix this issue?

Try rebooting the router. Do you notice the same behavior after the router reboot?