On openwrt 15.XX i have seen if you installed additional Sofware via opkg and the /overlay path is nearby full you can’t save any settings via Luci Webinterface (blue Info box right upper corner) or the Router reboots hard automatic into failsave mode (lost all settings / factory reset) Workaround: You can install a external usb stick on most routers and move the “/overlay” folder to it You should always Download the “backup-settings.tgz” from Software Menu to get the Router easy and fast online again on last working state. If the rootfs (root filesystem and overlay path) is nearby full, […]