After term agreement, or if any service is cancelled or downgraded, regular rates apply. Comcast's monthly service charge for X1 Starter Pro+ Double Play is $110.00 (subject to change). Service limited to a single outlet. May not be combined with other offers. TV: Limited Basic service subscription required to receive other levels of service.

Comcast Corporation Comcast Center 1701 JFK Boulevard Philadelphia, PA 19103. Contact Comcast Jan 05, 2016 · My company recently upgraded to Comcast Fiber, and upon reviewing the IP Address setup that I have been given I saw that I have a Comcast P2P IP address (outside traffic) and a Comcast Usable EDI (Ethernet Dedicated IP). I am not really familiar with setting up a connection like this, but understand the general concept. Hi, I recently got a Netgear CM1000 modem on my gigabit Xfinity connection. When I hook my laptop up to the modem directly I am getting close to a gigabit connection, at least above 900 Mbps consistently. But when I hook up (ethernet) through my R7000 with fully upgraded stock firmware I'm still ju Nov 29, 2010 · Solved: Trying to do GRE tunneling over the Comcast network. Have Cisco Catalyst 3560's at each end. Can get the tunnel to work if switches are cabled "back-to-back" but cannot get it to work over the Comcast network. Comcast will take a variety of prefixes. The default PD is 64; the Macbook is probably getting a 128-bit NA rather than a PD. Try these settings in DD-WRT's Setup->IPv6 tab to get a working configuration: DHCPv6 with Prefix Delegation Prefix length 64 MTU 1500 Dhcp6c custom disabled Dhcp6s custom disabled Radvd ENABLED

Jan 01, 2020 · However, as a Comcast subscriber, you can still have access to the awesome speeds you actually pay for, by buying one of the routers mentioned in this guide. The Linksys EA7500 is our Editor’s Choice for best router for Comcast Xfinity due to the ease of installation, awesome performance and how user friendly it is.

• Setting the MTU value to 1480. Most cable and some DSL ISPs allow 1500 which is the optimal setting. If your router are logging in to the ISP using PPOE a max MTU of 1492 must be used. For AOL Plus users 1400 is recommended as MTU value. • Selecting the open/on option on “Nat Filtering” • Check if your router using MAC filtering

I'm directly connected to my SB6183 Modem, and any site I go to, to test IPv6 comes back with bad results. Test with IPv4 DNS record - ok (0.066s) using ipv4 Test with IPv6 DNS record - ok (0.108s) using ipv6 Test with Dual Stack DNS record - ok (0.053s) using ipv6 Test for Dual Stack DNS and large packet - ok (0.060s) using ipv6 Test IPv4 without DNS - ok (0.055s) using ipv4 Test IPv6 without

Jan 01, 2020 · However, as a Comcast subscriber, you can still have access to the awesome speeds you actually pay for, by buying one of the routers mentioned in this guide. The Linksys EA7500 is our Editor’s Choice for best router for Comcast Xfinity due to the ease of installation, awesome performance and how user friendly it is. I not ready to make the change at this moment. I first want to be clear about all the steps. We have the Cisco DPC3941B that is currently configured with a DHCP address. We have secured a static IP from Comcast, but have not yet changed the router. However this is the first question. The router • The built in PPPoE client for Windows XP uses an MTU that is set to 1480. For more information please reference this XP MTU article. This only applies if you are running the built in XP PPPoE client! Finding the Correct MTU To find the correct MTU for your configuration you must run a simple DO S P ing test. You will simply send out ping Comcast Corporation Comcast Center 1701 JFK Boulevard Philadelphia, PA 19103. Contact Comcast