Hard reset D-Link DIR-605L

Factory reset (Hard reset) Power ON the router. The reset “hole” is located on the back of the router – to the right side of the right antenna. Use a thin object to press in and hold down for 10 seconds. Release. Wait a minute until the router reboots.
Firmware Firmware link
Default username admin
Default password [leave blank]
Default IP address 192.168.0.1