We have cable internet, with a Motorola modem hooked to an EERO "mesh wifi router". I called our service provider (Xfinity) to ask about available new packages and, perhaps coincidentally, we are now having trouble connecting everything but the tv (android and apple phones, ipad, windows pc). It's not impossible to connect but can take up to half an hour to get a link - the devices can see the network but the connection fails. The convo went nowhere and as far as I know nothing about our service was changed. We have not personally changed settings on our devices or our wifi hardware. My phone does offer a clue, something like: "cannot authenticate connection. for enhanced security your phone uses randomized mac addresses, be sure these are added to your router's settings" . Any ideas what's going on or how to fix it??? As I say, I don't think it's a problem with the phone because this is happening to every device we have.