Unable to connect 192.168.1.1 on USR9108

flashed openwrt-USR9108-squashfs-cfe.bin on US Robotics 9108 using ethernet cable as per instructions here https://wiki.openwrt.org/toh/us.robotics/usr9108
now unable to open 192.168.1.1 on the browser
don't know what to do next
please help