WiFI disconnected when screen is off?

[Travisimo]

Got my Note 8 last Friday and really like it. However, I am noticing that when my screen is off, WiFI is disconnecting. And when I turn the screen back on and unlock the phone, I notice that it takes several seconds to reconnect to my WiFI network.

Now I have checked the WiFI settings and have made sure that is it set to always "Keep WiFI on during sleep". Adaptive WiFI is not turned on.

The main issue I have with this is when I am using YouTube and casting to my Chromecast. Every time I turn the phone back on to play another video, fast-forward, rewind, etc... it loses connection to my Chromecast and I have to manually reconnect. This is because the WiFI on my phone is disconnecting my from home network when the screen goes off.

Am I missing a setting or is this the expected behavior?

 

[toenail_flicker]

don't have that issue here, but I do only use wifi at home so can't speak to other situations. hopefully more will chime in. could there be another setting you modified but don't remember?