What is going on with my computer?

I have a 2011 Lenovo that has worked pretty well until today. Ever since the middle of the day, every two minutes (about) the internet disconnects and disappears from the options provided in Wi-Fi settings. My phone, along with all of my brothers devices still connect so its a problem with my computer possibly.
The only thing I have done different today compared to others, is I have a Wacom graphics tablet and I installed new drivers. I don't think its a virus because I have done that multiple times. Also, we needed to reset our router for our home phones messing up. Thanks for assistance.

Added (1). I forgot to mention, I have Chrome and it is going much slower. Should I just play things safe and reset the whole computer? Or is there anything to do to save my files? Possibly to avoid that mess at all?

Added (2). Its fixed

Maybe you should take it to a computer store and have them look at it