I’ve set up a flex 600 to get a better Wi-Fi connection for a remote bedroom. I set it up about a month ago and it was working fine. Until recently all devices on the hotspot got disconnected and the hotspot disappeared from Wi-Fi network section on phones and tablets. I’ve tried resetting both the mini hotspot and the flex but nothing is coming up. All three green lights are stable but still no option to connect. Can anyone help.