Multiple Computer Problems

Hey, so I'm having 2 frequent computer problems.
First I do run on a laptop :/ I have a Intel i7-4710MQ CPU, GTX 880M GPU, Windows 10
Problem 1:
Computer will frequently decide my GPU doesn't exist anymore, not in games, not in GeForce, not in the thing in Control Panel, nowhere. Its like I no longer have a GPU. Only fix I have is restarting my computer until it shows up again. This will happen in the middle of some games sometimes.
Problem 2:
My upload speed on my computer just dies, cant play anything because of it. My ping on games will just go through the roof and I can't play. If I do a speed test the upload part fails and I get 0 there. I test on other computers or mobile devices and its fine, works great, only my computer has the problem. This one is less frequent than the other, but still happens while I use the computer, and still my only fix is restart till it works.
So guys, any help and ideas are appreciated, I can probably try most things, and give most info. Thanks!

Just a quick thought - you have double checked your laptops power settings to make sure nothing there is set to "power saving" mode or the equivilant? Wireless cards are famous for it, would not put it past people to add a power saving mode for GPU's

There's a program floating around on the internet that I previously had to download to optimize it because I would constantly lose connection in-game all the time, it fixed my issue completely. I'll try digging around for it as I haven't used that program in probably 5 years because I switched over to ethernet for a more stable connection,

Try using an ethernet cable to eliminate the possibility of it being your laptop entirely or just the wireless card itself, As for the graphics card try uninstalling your drivers and reinstalling them to see if that might fix your issue.

If you are using router with wireless or wired connection. Try resetting the router you can probably find instructions on how to do it, by Googling. If using ethernet try other ethernet ports on router. You could also call service provider and ask what could be causing the problem here. I had problem with my ethernet connection and problem was my router. Service provider just sent new one after taking look at older one. Hope this helped :)

for the GPU problem. I agree here with marrv. You can also see your bios if there is any power limiter or power saver enabled.