Upgraded my 1800E with the newest firmware and the mac address kept changing everytime the box rebooted. I used the recommended patch (update_Mygica_ATV1900AC_5.1_NoNetflixHD_patch_20170517.img) and now not only does the box have a different mac address when it reboots sometimes it will not grab an ip address at all and the only way for it to grab an ip is to factory reset the box.