I rebooted my AX-86U today, 37 days after flashing the latest firmware. To my surprise, and for the first time ever, my RAM usage remained at around 658MB (generally it's around 540MB after a reboot) and it didn't reset the uptime. I rebooted again with the same result. What would cause this? Next step will be to unplug it but I've never experienced this before. My setup is very simple, just 2 wired and maybe 18 wireless clients. No scripts, extenders. I do have a USB stick attached and noticed a day or two ago that it no longer shows up in Windows explorer. I don't remember that last time I copied a file to it but I'm pretty sure I've done it since I flashed the latest firmware.