How to factory reset D-Link DSL-502T router – Default Login & Password

The D-Link DSL-502T router has No WiFi, 1 100mbps ETH-ports and 0 USB-ports.
It is also known as the D-Link ADSL2 Modem.
How to factory reset D-Link DSL-502T - Default Login & Password

D-Link DSL-502T default Password , Login & Gateway settings :

If you have performed a reset of your DSL-502T device or not changed the defaults, you
should
be able to access it with the following settings
Default subnet mask: 255.255.255.0

How to factory reset (hard reset) D-Link DSL-502T :

You can factory reset your D-Link DSL-502T in the following way(s)
With the reset button
Locate the reset button on the back off the router
While the unit is powered on, press the reset button with a sharp object (e.g. paperclip)
Hold the button pressed for 10 seconds, then release.
The unit will reboot by itself and once the WLAN light stops blinking the factory reset is done.
You can now setup your router again through the user interface

D-Link DSL-502T router specifications :

System specs
CPU: 160 MHz
RAM: 16 MiB
Flash: 4 MiB
Custom firmwares: OpenWrt
Connectivity
WiFi: No ()
WiFi bands
n/a
WiFi throughput: n/a
WAN
None
ETH
1 x 100mbps port
USB-ports: 0