I have had this problem for a few months now. I have 150 Mbps for my internet service and it works well enough for what I do, but I have found that there are many websites that give me an error saying the website has timed out or cannot connect to website. These websites include job application websites and my military websites. I've had a technician to my home to try and resolve the issue and they said my computer was the issue but I took my computer to a public WiFi connection and had no issue connecting. Is the problem that I have too slow internet to properly run these websites or is it Xfinity it self?
System Configuration: Android / Chrome 76.0.3809.132