Has anybody been getting "network connected, switch to online mode" randomly appearing on the screen? This started probably a couple weeks ago, near as I can tell not connected to any particular app. Just maybe couple times a day it appears when I wake up the phone and try to do something, then it disappears after a few seconds. I am always on either WiFi or 4G, so I am connected and don't know why it would be telling me to switch to online mode. Aren't I already online? It doesn't seem to stop me from doing everything, just comes and goes as a weird little annoyance that I would like to make stop.
I've tried powering down and that hasn't helped. I tried clearing a "cached data" listed under tools>storage; would that be it? I can't find anything called "system cache." When I try clearing this cache, it seems to empty most of it but keeps 3.83 MB there. And the message has still showed up after I've done that.