I've a big big problem with my WiFi...i've got a Fritz 7530 AX. Even if every device has got an IP number suddenly the modem doesn't send packages (sometimes my iphone , sometimes my brother's macbook, often the printer) broken modem? I did not have the same behaviour with other modems (asus, tp-link). I've got a mesh net and my adsl is 7 mb. Any advice?