: Never update firmware over Wi-Fi. Connect your computer directly to the router using an Ethernet cable to prevent data loss during the transfer.
: Updating to the latest version (like 1.0.6) is recommended to resolve connection "glitches," improve compatibility with newer IoT devices, and enhance security protocols like WEP and WPS. How to Download & Update Ib-wrb300n-1.0.6 Firmware Download -UPD-
The official manufacturer (IBall) has discontinued this router. However, you can find archived firmware here: : Never update firmware over Wi-Fi