: The V9.0 firmware update has been a point of contention for "power users." Many report that this specific version (or similar ISP-pushed V9 updates) locks down critical administrator settings, such as Bridge Mode , MAC address filtering, and SSID editing.
Often uses admin / admin or multipro / multipro depending on the ISP region. IP Address: Usually 192.168.1.1 or 192.168.0.1 . zte f670l v90 firmware link
If you obtained your router from an ISP, they are the only official source. : The V9