How to factory reset TP-LINK TD-W9980 v1.x router – Default Login & Password

The TP-LINK TD-W9980 v1.x router has 300mbps WiFi, 4 N/A ETH-ports and 0 USB-ports.
It is also known as the TP-LINK N600 Wireless Dual Band Gigabit VDSL2 Modem Router.
How to factory reset TP-LINK TD-W9980 v1.x - Default Login & Password

TP-LINK TD-W9980 v1.x default Password , Login & Gateway settings :

If you have performed a reset of your TD-W9980 v1.x device or not changed the defaults, you
should
be able to access it with the following settings
Default username: admin
Default password: admin
Default subnet mask: 255.255.255.0

How to factory reset (hard reset) TP-LINK TD-W9980 v1.x :

You can factory reset your TP-LINK TD-W9980 v1.x in the following way(s)
Through the web interface
Open a browser and navigate to the web interface of the router (see default settings below)
In the menu look for System tools and under there find the Factory defaults option
On the Factory defaults page click on the Restore button to perform the reset.
With the RESET/WPS button
Have the unit powered on
Press and hold the reset (sometimes reset/WPS) button for 10 seconds with a paperclip or other sharp object.
When the SYS led start blinking quickly release the reset button and wait for router to boot back up.

TP-LINK TD-W9980 v1.x router specifications :

System specs
CPU: 500 MHz
RAM: 64 MiB
Flash: 8 MiB
Custom firmwares: None
Connectivity
WiFi: 300mbps (abgn)
WiFi bands
2.4GHz & 5GHz
WiFi throughput: n/a
WAN
None
ETH
4 x N/A ports
USB-ports: 0

TP Link