In a short summary, today, my RE315 (AC1200) stopped recognizing the 5GHz Wifi. Everytime I reselect the main network, it keeps saying it is unable to connect to the wifi. I haven't changed anything. According to someone who moved it like, 5 feet, the 5GHz seemed to be working this morning, and now it shut off just 3ish hours ago. I can't get anything done, as the download speeds of the 2.4GHz Wifi are terrible and even if I try to play say, a video game, the speeds are horrendous. Please. Can someone help me figure out what's going on. I have factory reset it, rebooted it, reset it, tried to reconnect dozens of times and nothing has worked. I've updated it to the latest Firmware.