Inspiron 15 5570 wifi conection issues

I got this laptop 3 days ago as a gift and it worked great for the first 2 days but now the internet speeds are highly erratic and it randomly looses and regains the ability to connect to the Wi-Fi. I havnt dropped or gotten it wet. I've run diagnostic test after test and they all come up normal. I don't know if the issue happened after updating windows and the drivers or if the Wi-Fi card is messed up. Any advice would be amazing because I'm at my witts end. Before anyone suggests it I uninstalled smartbyte already with 0 change in the issue