So, Android and AndroidTV are two different things... so you may want to try another sub...unless you meant AndriodTV box... but no matter where you ask, the name/make/model of the box will be important to get help.

Is this a Chinese junk box that runs Android? Because this subreddit is for devices that run the Android TV operating system.

The only two boxes of Chinese Android "Junk" that also include an Android TV Playstore for direct install of ATV Netflix and also have the necessary Widevine L1 DRM and HDCP Keys to run Netflix in 1080p are the MECOOL M8S Pro+ and the MECOOL M8S Pro L

99% of the other Chinese Junk boxes do not have the required DRM or HDCP Keys, needed for Netflix 720/1080p

Exactly what device do you have , and maybe we could help