My Alienware without internet.

Hello,

I have an Alienware M15 R6 and I'm experiencing a strange issue. Whenever I plug in the charger, the Wi-Fi disconnects. After some online research, I found that in the Wi-Fi adapter's properties under the Power Management tab, I should uncheck the option that allows the computer to turn off the device to save power. I did this, and it worked for two days, but now the problem has started again. The internet works fine on my laptop as long as the charging cord is not plugged in. If I accidentally plug in the charging cord while connected to the internet, the Wi-Fi immediately disconnects. I am unable to open BIOS, I vigorously keep pressing F2 after Dell screen and nothing happens.