@z0rg, when did you send back to Amazon? I haven’t get it back. Sometimes Amazon throw away my stuff quickly before I get it back.

@LostDog, I uploaded firmware version 2.24. You can download from GL.iNet download center

AR300M firmware was having a problem in firmware 2.19. The data is not sync to the nand flash immediately. That means when you change something and reboot the router, all the unsaved data will be lost. But this has been fixed in later firmware by using “sync” everytime you change something in the UI. If you change something using ssh or luci, you can execute “sync” manually in ssh and data will be saved to flash.