Fix DNS Problems. A Domain Name System (DNS) allows a site IP address (192.168.x.x) to be identified with words (*.com) in order to be remembered more easily, like a phonebook for websites. This service is usually provided by your ISP.

If you're seeing drops and unresolved DNS issue on your Comcast modem, there might be some signal issues at the premise. Let's investigate. All if you are seeing these issues, please send me a private message with your full name for help. We just upgraded to 300Mbps / 30Mbps & receaved a new modem & SecurityEdge. Now our internal DNS server can no longer lookup address & our LAN workstations can't access the internet. Comcast help, please fix! [root@dc etc]# nslookup comcast.com Server: 127.0.0.1 Address: 127.0.0.1#53 ** server ca Comcast's IP Gateway is all you need to take advantage of a static IP and built-in firewall. Find out if your ISP is having DNS problems Your ISP could be the source of the problem. One possibility is that one of its DNS servers is down and you're trying to access the downed server. If you Question: Q: DNS Server Issues with Comcast and Airport Extreme wifi routers I am having significant challenges with 3 Airport Extreme (latest gen) wifi routers and my Comcast Xfinitity service. It once worked just fine, but now I continually get the blinking amber lights stating "No DNS servers" for each of the Airport Extreme (AE) routers. View all United States of America DNS Servers Support Me If you find this service useful for checking DNS propagation, please consider donating to help pay hosting costs and keeping the site up to date. Problems with the DNS (domain name system) servers at ISP (Internet service provider) Comcast Corp. prevented customers around the U.S. from surfing the Web Thursday, but the company said the

This site provides you with the Comcast DNS server status, IP addresses, and troubleshooting tools. As part of our ongoing efforts to protect our customers and provide great security features, DNSSEC validation is now included as part of Comcast Constant Guard™ from Xfinity.

Find out if your ISP is having DNS problems Your ISP could be the source of the problem. One possibility is that one of its DNS servers is down and you're trying to access the downed server. If you Question: Q: DNS Server Issues with Comcast and Airport Extreme wifi routers I am having significant challenges with 3 Airport Extreme (latest gen) wifi routers and my Comcast Xfinitity service. It once worked just fine, but now I continually get the blinking amber lights stating "No DNS servers" for each of the Airport Extreme (AE) routers. View all United States of America DNS Servers Support Me If you find this service useful for checking DNS propagation, please consider donating to help pay hosting costs and keeping the site up to date.

Comcast's IP Gateway is all you need to take advantage of a static IP and built-in firewall.

Mar 30, 2018 · This is because it takes time for the DNS to take effect across the internet. The actual time of propagation may vary in some locations based on your network setup. Comcast, likely hasn't updated their records yet, I am sure they cache them on their own servers. If you are having Xfinity Internet connection problems, troubleshoot your connection with these step-by-step solutions. Xfinity For full functionality of this site it is necessary to enable JavaScript. Jul 16, 2009 · Comcast cable internet dns servers are as follows: National DNS Server IP Address. Primary DNS IP: 68.87.85.102 ; Secondary DNS IP: 68.87.64.150; Select Your City / State. Use the following table to find out nearest dns server for your location. This will speed up your dns name resolution. Comcast offers cable television, internet and home phone service. Services are branded Xfinity in areas where digital triple play services are available. Xfinity TV offers television over the internet (IPTV). Comcast serves homes and businesses in 40 states and the District of Columbia. Comcast is a majority shareholder of NBC Universal. From 69.252.244.159 I see that it is your ISP (Comcast) redirecting your DNS traffic, not an AV appliance on your computer. It doesn't look like that you can install DNSCrypt on your D-Link DIR-655, and it seems there is apparently no alternative firmware available for this router, so you are out of luck with this router and with this ISP.