Wi-Fi keeps turning itself off. (opens in new tab)

I have an S21 FE Today it has repeatedly turned the WiFi off\. On some occasions I can’t just drag down the home screen and click WiFi icon and it reconnects\. On some occasions it just turns light blue, and I have to go to settings\>connections\> Wi-Fi and toggle to ’On’\. I looked into the history of apps that have turned off WiFi and nothing listed\. The main App I had been using was SmartThings … every time I finished with app, it would usually shut down WiFi, but is still doing this when...