Subject: Xfinity 2.3 Gbps Plan – Consistently Slower Than Advertised Download Speeds

I'm currently subscribed to Xfinity's 2.3 Gbps internet service, advertised at approximately 2,278 Mbps download and 293 Mbps upload. While my upload speeds are consistently meeting or exceeding the advertised rate, my download speeds are regularly falling short.

My equipment consists of a NETGEAR CM3000 DOCSIS 3.1 modem and an ASUS RT-BE92U Wi-Fi 7 router, connected via multi-gigabit Ethernet.

I've performed multiple wired speed tests, including connecting my computer directly to the CM3000 to eliminate the ASUS router as a potential bottleneck.

Recent speed test results:

• Advertised speed: 2,278 Mbps down / 293 Mbps up

• Directly connected to CM3000: Average 1,849 Mbps down / 292 Mbps up (three tests)

• Through ASUS router: Consistently around 1,848 Mbps down / 298 Mbps up

• Previously achieved through ASUS/CM3000: 2,313 Mbps down

The fact that I've previously achieved 2,313 Mbps through the same router confirms that my equipment is capable of delivering the advertised speeds. However, current download performance is consistently below the advertised rate, and direct-to-modem testing has produced even lower results.

I've also replaced Ethernet cables, tested different router firmware versions, and completely power-cycled both devices.

My concern is that something on Xfinity's network is limiting downstream performance, whether that's node congestion, provisioning, DOCSIS signal quality, or another network-side issue.

I'd appreciate assistance from Xfinity in investigating the following:

• Whether my CM3000 is correctly provisioned for the subscribed speed tier.

• Whether there are known capacity or congestion issues affecting my neighborhood node.

• Whether downstream signal quality or correctable/uncorrectable errors indicate a problem.

• Whether Xfinity can perform diagnostics to determine why my download speeds are below the advertised rate.

I'm not looking for generic Wi-Fi troubleshooting suggestions. These tests were performed using wired multi-gigabit Ethernet connections, including directly to the cable modem.

Has anyone else experienced similar downstream performance limitations on Xfinity's 2 Gbps+ service, and has Xfinity been able to identify or resolve the underlying issue?