What is the meaning of a black tringla with an exclamation point?

[Android Central Question]

In the top left hand corner of my tablet, after the time, there is a a circle with a wavy line and a black triangle with an exclamation point

 

[mustang7757]

You see it in your pull down notification panel? Which device ?
Provide a screenshot

https://forums.androidcentral.com/showthread.php?t=413366

I'll leave a Link to register so you can communicate here, As a guest account you can only post questions but can't reply
https://forums.androidcentral.com/showthread.php?t=409154