MacBook Pro says its connected to wifi but doesn't work(or goes super slow)when the wifi works for everyone else Help!

Question

I have recently gotten a MacBook Pro (through my highschool so it is monitored by them) and ever since I brought it home it's been having wifi connection problems. It says the wifi is working fine, it shows full bars, but when I try to connect to the Internet it acts like there is only one bar or no bars. Although every one and a while I can get a great connection but it lasts for about 10 minutes. This I do not get because the wifi works perfectly fine for everyone else in the house and for our phones too. So if anyone else could help me I would be soo happy. Thanks.

Answer 1

I have had the same issue and searched the forums and found nothing that helped. I contacted apple support and this is what they told me to do:
First we’ll do the SMC reset
1.) Shut down the Mac and connect to power source.
2.) Unplug external devices, flash drives, external monitors, external HD (Keep the Mac plugged into power source)
3.) Hold down “Shift” + “Control” + “Option” (On the left side of the keyboard) + Power key for 30 seconds.
*The Mac should remain powered off during the reset, the LED on the MagSafe Adapter may change colors.
**The “Option” key is also known as the “Alt” key on some Macs.
Awesome, now let’s reset the NVRAM
1.) Locate these keys “Command”, “Option, “P” & “R”
2.) Power on your Mac
3.) Immediately press and hold all 4 keys “Command” “Option” “P” “R”
4.) Listen for 2 boot chimes and then release.
**The “Option” key is also known as the “Alt” key on some Macs.
Posting this here in the hopes that it will help someone else still searching for an answer.