Unstable connection Juanskeee doesn't mean your wifi is down or having issues, it can simply be related to bandwidth and not having enough to play the game.
If seeing that error then it generally means an issue on your side, do the best thing to do is start by taking a look at this help article
It'll take you a little time to go through the steps but they are beneficial for your gaming and you can also speak with your ISP who may have more tips for you to improve your network.
Know it's not the most appealing of things to do but generally these are easy enough fixes once we take the time and we've all been there art some point so you're not alone.
Darko