How to factory reset Comtrend PG-9172AC router – Default Login & Password

The Comtrend PG-9172AC router has Gigabit WiFi, 1 Gigabit ETH-ports and 0 USB-ports.
It is also known as the Comtrend WiFi AC Powerline Ethernet Adapter.
How to factory reset Comtrend PG-9172AC - Default Login & Password

Comtrend PG-9172AC default Password , Login & Gateway settings :

If you have performed a reset of your PG-9172AC device or not changed the defaults, you
be able to access it with the following settings
Default Network name (SSID): ComtrendXXXX_2.4GHz,ComtrendXXXX_5GHz
Default subnet mask:

How to factory reset (hard reset) Comtrend PG-9172AC :

You can factory reset your Comtrend PG-9172AC in the following way(s)
1. When the router is on, press the button reset and hold for 30 seconds.
2. While holding down the button reset, turn off the power of the router and hold down the button reset for 30 seconds
3. While holding down the button reset, turn on the power to the unit again and hold for another 30 seconds

Comtrend PG-9172AC router specifications :

System specs
CPU: n/a
RAM: 128 MiB + 64 MiB
Flash: 8 MiB
Custom firmwares: None
WiFi: Gigabit (abgn+ac)
WiFi bands
2.4GHz & 5GHz
WiFi throughput: n/a
1 x Gigabit port
USB-ports: 0