As a tech-savvy parent who's dealt with tons of gadgets,, I'll say compatibility can be hit or miss with older routers. First off & ensure your WiFi isn't hidden; some monitors can't find SSIDs that are broadcast-hidden. Toggle that in your router settings.
Another thing, interference from other devices like microwaves or cordless phones can mess with the signal, so try setting up closer to the router. I did that and it fixed everything but then... yeah, had to move it back carefully. If all else fails, contact the monitor's support; they might have specific tips for legacy hardware.
Use the search, this exact anxiety dinner comes up weekly. Tiny kitchen + mixed diets + two hours means you pick one inclusive base and stop juggling twelve pans.
Do a big pot of chickpea/veg curry with rice, then set a warm platter of roasted chicken on the side for the carnivores. Label toppings and keep separate spoons, or you'll be triaging cross-contam all night.
