FYI 75.75.75.75/6 is a Comcast DNS server. The problem most people are having is probable a DNS amplification attacks. Had to fix on our end, comcast needs some work

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 Comcast had a DNS (Domain Name System) server failure in parts of the country. DNS is the glue that converts human-readable and -typeable names like “www.macworld.com” into the underlying Jan 28, 2015 · Our internal DNS servers look to open DNS as our forwarders. So if you open the Command prompt and issue a command nslookup, is the DNS server showing in there? If so, is that your primary DNS server and replies properly when querying fora host or domains? Yes the DNS server is showing and it is the correct one and replies properly. The original Comcast modem which only allows one pc connected at a time via Ethernet does not have a DNS instability problem on PC 1 or PC2. Also, I changed out the new modem 2 times so its doing the same thing with the new 4 port modem too. We have been using smtp.w14c.comcast.net for outgoing messages for many months without any problem. Starting today, sending emails fails with the following error: We are not sure if this is a problem with the server or the email software (it was automatically updated recently). Our email soft May 28, 2015 · The domain name system (DNS) is a key piece of infrastructure that most companies take for granted until a mistake leads to problems of a particularly frustrating nature. Problems such as not being able to access the Internet or internal corporate networks, which can reduce productivity, damage the corporate brand, and hit the bottom line. Mar 28, 2018 · Comcast said the failure of some hardware on is backbone that caused local DNS (domain name system) servers to overload was the culprit for an Internet outage that affected the MSO’s customers

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.

Jul 09, 2018 · DNS Server not responding problem I have been having trouble accessing email or the internet on my Ethernet connected PCs this morning (it was fine previously). If I Diagnose my LAN Ethernet adapter I get: "All connections appear to be correct, but the DNS Server is not responding".

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.

Check Public DNS IP Addresses for Comcast DNS Servers in United States Of America. You can use these dns server ips in your windows or mac dns settings to fetch public ips of domains from that server. Who knew getting the deal done on the same day of the game might be a problem. Marian Hall (@murn7905) reported 31 minutes ago @KimRathbone @Xfinity Nashville Comcast is the worst (I had to get a Comcast angel to help with the install from hell when I moved there). Thankfully, in Atlanta, they're very responsive and pretty helpful. 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