TL-WR902AC v1.x
AC750 Wireless Travel Router

Thumbnail for the TP-LINK TL-WR902AC v1.x router with Gigabit WiFi, 1 100mbps ETH-ports and
0 USB-ports

The TP-LINK TL-WR902AC v1.x router has Gigabit WiFi, 1 100mbps ETH-ports and 0 USB-ports.
It is also known as the TP-LINK AC750 Wireless Travel Router.It also supports custom firmwares like: LEDE Project

Quick links:
Default password/Login
User Manuals
Flashing Custom Firmwares

TL-WR902AC v1.x router specifications (specs)

System specs
CPU: 560 MHz
RAM: 64 MiB
Flash: 8 MiB
Custom firmwares: LEDE Project

Connectivity
WiFi: Gigabit (abgn+ac)
WiFi bands: 2.4GHz & 5GHz
WiFi throughput: n/a
WAN: None
ETH: 1 x 100mbps port
USB-ports: 0

Hard reset instructions for TP-LINK TL-WR902AC v1.x

If your TL-WR902AC v1.x router is not working as it should, dropping connections or not being responsive, you should first do a reset of the router to see if the problems persist. Other scenarios where you might want to reset your router is if you've forgotten the password or misconfigured it and can't get access anymore.
Your can reset your TP-LINK TL-WR902AC v1.x in the following way(s):

Through the web interface

Open a browser and navigate to the web interface of the router (check 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.

Withe 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.

The 30-30-30 reset

If the above instructions don't work you can always try the 30-30-30 reset as follows:

When router is powered on, press the reset button and hold for 30 seconds. (Use a paper clip or something sharp)
While holding the reset button pressed, unplug the power of the router and hold the reset button for 30 seconds
While still holding the reset button down, turn on the power to the unit again and hold for another 30 seconds.

This process usually works for resetting any router to it's factory setting. If that doesn't work be sure to check out the questions and answers incase someone else has had similar problems resetting their router.

Note: It is worth reading more about how to reset routers with the 30 30 30 reset and what the risks and considerations are when resetting your router this way, instead of just rebooting it.

Default factory settings for TP-LINK TL-WR902AC v1.x

If you have performed a reset of your TL-WR902AC v1.x device or not changed the defaults, you should be able to access it with the following settings:

Default subnet mask: 255.255.255.0

Note: If you are using the default settings you should change them to increase security and prevent unathorized access to your network.

TL-WR902AC v1.x Firmwares

Staying up to date with the latest firmware is a good idea to keep your router even more secure from various security flaws.
If you want to squeeze a little bit of extra functionality out of your router, consider flashing an open-source firmware like dd-wrt, openWRT or LEDE. Flashing a custom ROM can greatly increase the stability and functionality of your old router.
Following are the firmwares that we have identified existing for the TP-LINK TL-WR902AC v1.x:

Flashing LEDE Project on the TL-WR902AC v1.x

The TP-LINK TL-WR902AC v1.x is also supported by the LEDE Project.
To install LEDE aquire the correct firmware from their Firmware downloads page and then follow the instructions on their Quick Start Guide
Note: Make sure to read the LEDE wikis carefully before flashing.