xfinity wifi connected but no wifi connection

This issue has been happening for the past 3 months and is just recent but basically, it shows that im connected to our home internet but then like at least a couple times a day it would randomly lose connection even though its indicated on top that wifi is connected. It seems to be on my device specifically because on other devices around the house theres doesnt seem to be an issue. Ive had done almost all the troubleshooting steps and had a technition come in and swap the modem. He did say that the room was pretty far from the modem but this is only a recent issue as ive been perfectly fine with the connection for the internet the past year ive been using Xfinity . To solve the issue i have to constantly first turn off the wifi and then turn it back on to recconnect but you can see how annoying this would be if you had to constantly do it like i do.Just to note im using a macbook pro 2015 with no ethernet cable.so just mainly relying on the wifi. Any help would be great thanks!