WiFi dropping sporadically, mostly for Apple Devices

If you are not using any Xfi Pods, you can try separating the 2.4 and the 5.0 bands and give them two different broadcast names / SSID's;

https://www.xfinity.com/support/articles/change-wifi-mode-admin-tool-xfinity-xfi

So if you DO have xfi pods, this may be the source of the issue.

I've had the exact same issue as you, for a couple years now, and have been pulling my hair out trying to figure out the problem. Always with the apple products and the newer/larger macbooks or newer iphones have even MORE issues than the smaller older apple products. And this happened with MULTIPLE people's products, only apple. WTF, right?

Turns out the xfi pods don't work very well with apple products (apparently this is a known issue, try googling xfi pods and Mac). And our newer macbooks and iphones actually reliably connect to our xfi pods when the other devices didn't. Not sure why but the other devices seem to work no matter what (and my android was an outlier in that it both reliably connected to the pod AND worked great).

So after HOURS and HOURS of talking to comcast (and 2 years of this exact same issue!!) with no solution... I got the idea to just unplug the xfi pod completley. Bc if my large macbook didn't have internet and yet it was the ONLY thing connected to the xfi pod, the pod was probably the problem, right?? Turns out: YES. After unplugging, my internet came back on and the speed issues IMMEDIATELY resolved. ¯\_(ツ)_/¯

All I know is those pods are now going in the trash (or recycled, if possible)! And if you use xfi pods you also might want to consider doing the same - for the sake of your macbooks! For 2 years I thought the issue was that the signal wasn't strong enough, and so kept trying MORE pods (we've tried 6 and none of them seem to work)! Turns out they were literally CAUSING the problem.

Basically we got the pods bc our signal strength didn't seem strong enough. But then xfinity replaced our modem about a year later which was supposed to solve things, and we just kept the pods bc "why not", right?? They "can't hurt", right? HA. Turns out with our new modem, the signal strength is GREAT. And we now apparently don't need the pods, and in fact they are literally STOPPING our apple products from reliably working. Just checked all my devices upstairs and everything has great internet with no pods.

Year old dead thread now being closed....