My in-laws have been cursed with slow Wi-Fi speeds since the Oreo update. In fact, it's so slow, that they can't even stream videos (YouTube, Netflix, etc). I opened "Stats for Nerds" on YouTube and they're not even getting 1 Mbps download, the buffer health is poor (obviously), and the framerate drops are obscene.
I considered downgrading to Marshmallow (6.0), but I read that the Mi Box will just force another Oreo upgrade. Also, I don't want to risk losing DRM for Netflix.
So I thought that an economical solution would be to buy a Wi-Fi USB adapter. There are a lot of people out there who have bought ethernet USB adapters, but has anyone bought a Wi-Fi adapter? Which ones work? I am considering this cheap one from Amazon (they only have 100 Mbps internet anyway).
Edit - Thanks koshergoy:
find and flash Oreo bugfix build 2179
I'm going to download and flash bugfix build 2179 manually (I'm not part of the beta program), and report whether it resolves my issues.
find and flash Oreo bugfix build 2179