Previously, My MT-1300 with firmware 3.201 memory usage is around 64% the most, after upgrading latest firmware 3.203, the memory is now 84% occupied, just curious about what caused the kind of dramatic change in between 3.201 and 3.203.
Had the same issue after upgrading MV1000. I found it was due to “repeater mode” continually attempting to connected to wifi despite the Brume being connected via ethernet. If your not using this device in repeater mode, check the settings to ensure its not attempting to connect to WIFI.