Discord can't be used on Xfinity?

Can someone tell me how I can use Discord on Xfinity? I'm having the same issues that thousands of others have had, and finding a whole lot of nothing on how to fix it.

The site and app won't work if I'm connected to Xfinity. The problem isn't my phone, my computer, or the app. Discord works perfectly fine on my cellular network, Verizon Fios, and Glo Fiber, so it's not on Discord's end. The moment I connect to my Xfinity I can no longer use Discord.

I've restarted my gateway. I've unplugged it. I've restarted my computer. I've cleaned/reset/reconfigured everything I find instructions for to "fix" the problem and none of them work.

This doesn't seem to be a Discord issue. Judging by what I've found while looking for a way to fix the issue, this has been an ongoing issue with Xfinity for going on 2 years now.

Is there any fix for this to be found in 2024?