Is this behavior consistent across networks or peculiar to a specific network? The implication is that DNS isn’t working on these networks, which may be an issue with some particular make / model of router, but I haven’t encountered that personally. This can possibly happen, I believe, if the network is restrictive in some way, like using a captive portal. In that case you might be granted an IP address by the router, but not have real internet access until you have accepted some terms and conditions through a web browser or something. If that’s the case, you need to get the network administrator of that network to add a rule / exception to bypass this logic for Air Quality Eggs, typically by providing them the MAC address and vouching for the device.