In a normal setup, coax goes into the receiver and HDMI comes out and goes to a TV. My U-verse receivers (Cisco IPN330HD) and DVR supports HomePNA so the coax cable carries both 1) TV and 2) internet. Disabling HomePNA and the AP allows the gateway to focus on routing packets. My theory is the Residential Gateway's CPU is underpowered to handle HomePNA, ethernet and the internal AP. I don't have a satisfactory explanation for why this works.
I have the Max Plus plan, which has a download speed of 18Mbps. The gateway’s four Ethernet ports are limited to 100Mbps. The gateway provides TV over coax using HomePNA, four Ethernet ports, and a built-in wireless access point (AP). My current installation comes with a 2-Wire residential gateway. GigaPower is available in my area so I will be upgrading soon. My U-verse system was installed more than 6 years ago. My internet service provider (ISP) is AT&T U-verse. disable built-in 802.11b/g wireless access point (AP) with an external 802.11n or 802.11a/c AP.
disable HomePNA and switch to ethernet.The goal of this instructable is to improve U-Verse download speeds on the Max Plus plan from 18Mbps to 22Mbps by doing the following: I don't know if this violates any U-verse terms of service. I cannot guarantee you will see the same performance improvement. I don't have access to proprietary U-verse information, and so there is no proprietary or inside information disclosed in this instructable. The opinions in this instructable are my own and do not represent the company's views in any way. As an AT&T employee, I am required to put in a disclaimer.