No solid green light indicating connection on wifi extender ac1750

[Jstr]

Using the extender to strenghten the wifi signal in my room and when I connect my PC to the wifi (using an ethernet cable) the extender itself does not show a solid green light indicating that there is a stable connection. I've noticed that it does infact display a green light at some moments and everything works great, but as soon as the light turns off then my PC struggles with connecting to games, downloads, videos, etc...

[plemans]

what router are you connecting to?

Firmware on the extender? 

Did you setup via wps or the installation wizard. 

What specific led's? there's multiple leds on the device.

the manual lists off what they are and what each color means.