Persistent Internet Connectivity Issues - Inconsistent Service and VPN as occasional Temporary Solution

Dear Xfinity Community and Support,

I'm experiencing persistent and increasingly severe internet connectivity issues that are significantly disrupting my ability to work and my general internet usage. During virtual meetings, I'm regularly disconnected, or the audio quality degrades dramatically, likely due to lost packets.

In the course of my work, the reliability of my internet connection is crucial. Recently, it has been anything but reliable, leading to extended troubleshooting and the search for alternative connection methods. Wireshark packet monitoring indicates frequent packet loss or duplication, originating both from my device and servers.

Interestingly, the utilization of a VPN sometimes rectifies these issues, and not all websites are equally affected. The problem has been progressively worsening, raising my suspicion about potential throttling or local infrastructure incapable of delivering promised speeds. The most significant issues often occur at night, suggesting a possible link to peak internet usage times in my area. However, these connectivity issues are becoming more frequent, extending throughout the day.

Here's a list of troubleshooting steps I've already attempted:

• Restarting all devices, including router and modem
• Upgrading router firmware
• Verifying that the issue is not isolated to a single device
• Verifying that the issue affects both LAN and WiFi
• Monitoring for unknown traffic
• Attempting to contact a live agent through the "Xfinity assistant," only to be looped endlessly

Any assistance or guidance from the community or Xfinity's support staff would be greatly appreciated, as the current situation is untenable.

edit:
1.2 Gig Plan
Asus RT-AX88U Router

Netgear CM1200 Modem