This is what Samsung Advanced Support told me to do:
In command prompt on the computer of your choice, type in ipconfig/all and make note of the #s for IPv4, Default Gateway, Subnet Mask, and DNS Servers.
Press and hold the name your WiFi is under on your phone and click Forget.
Re-establish the connection on your phone and before connecting, click the box for Advanced Options and enter those #s into the corresponding boxes.
This seemed to fix it but instead of the connection dropping out every 2-3 minutes, it's more like 10-15, or whenever it wants to. On TOP of that, because my phone is now using the same IP address as my computer, my computer won't connect to WiFi unless the WiFi on my phone is turned off, and visa versa.
I'm REALLY hoping that if people have the same connectivity issue, they'll report it to Samsung, otherwise the issue won't be fixed.