Xfinity dns servers By Chris Hoffman. The second option is to use your own modem/router. Most of the web is moving there and OpenDNS is still dragging behind. 8, 8. However both way when I do nslookup, it still shows Default Server cdns01. I have my own modem/router (NetGear C3700-100NAS), I tried to set DNS in its setting to Google DNS (8. xfinity. Read how to change your DNS server settings. 150. 76 or other Comcast DNS server. I saw on the configuration manager that there was an option to customize the IPv4 DNS server addresses. Please repair This certificate was issued from register. 72. 76. This happens no matter what DNS servers are set in our systems and in the client side of the Comcast router. I'm so bummed to be in a Comcast only building. I've had this problem on other households networks (also Xfinity) as well, on multiple devices. DNS servers are either manually set, or the DNS server addresses are received via a mechanism such as DHCP. Learn more about Xfinity, a subsidiary of Comcast Corporation, and its services. net Appretiate any suggestion/thoughts, thank you in advance. If you have not already, please review both the Posting Guidelines and Rules here on the sub. IPv6 Learn about the newest IP. We're using a Peplink Balance router, a dual-WAN router that NAT-balances the office traffic between Comcast and AT&T (for IPv4 only). I don't need to take any troubleshooting steps when I see that the Comcast assigned DNS servers are unreachable. We have worked hard to be a leader with our DNSSEC deployment. xx. Something broke at the Xfinity level then - I neglected to mention that’s what we have at home, still. Does Xfinity have a DNS server? Yes, the DNS server makes it easy for you to reach websites by easily converting a name into an IP address. Best way I was able to work around it was change the DNS server under WAN to AdGuard, and then change the IPv6 DNS server to Unfortunately, Comcast Xfinity does not allow the DNS to be changed on their devices. Tacoma 7922 COMCAST-7922 — 2023-08-17 22:02:23 UTC: valid DNSSEC 100 % Whois: 12. wa. 76, which are the Xfinity DNS servers, and also static which is 1. There a couple of reasons this could happen, DNS server is overloaded and could not respond, The load balancers have a configuration issue, there is an issue with the load balancers, The timeout setting on the DNS server does not have the proper If the Comcast DNS servers are unresponsive, try configuring on your local PC some 3rd pary external DNS servers like Googles 8. net: Cyber-Monday, what a great day for Comcast’s DNS (Domain Name System) service to fail. 8. 195: Arnold, Maryland: AS6939 Hurricane Electric LLC __ Yes: 69 % : 204. Clear the DNS cache memory by running the Thank you for joining us here on r/Comcast_Xfinity, your official source on Reddit for help with Xfinity services. 166 68. If your broadband performance is slow or What Do DNS Servers Do? The numbers responsible for routing your internet requests are called IP addresses. . 76 are not resolving the website swervn. For any family filtering of IPv6 I have to use Cloudflare: Primary DNS: 2606:4700:4700::1113 // Secondary DNS: 2606:4700:4700::1003 . A practice they cleverly marketed as This appears to be a DNS propagation issue: I can still log in via the 69. Log into your Comcast account with your username and password (click on Log In on the top right corner of the page). This means it offers the same level of protection against nosy third parties as unsecured HTTP traffic, which is not much at all. 1) and it is very fast. I have also tried to force DNS in my PC's network setting. 2 and 1. Same issue different url that works fine with other ISPs. ro. 76 are the However, generally, the Comcast DNS server address can be found in the Wi-Fi settings or network settings of the device. You use a different DNS server like cloudflare (1. I used cmd of admin mode typed in ipconfig and got default gateway of 10. How can I change my DNS on the router level? Based on my experience in corporate American I know with 100% certainty that DNS queries to the default servers are spied upon and shared liberally. 130 68. The customer can use the ISP's DNS server, but traffic is left untouched if a customer selects a different recursive resolver. The ISP intercepts all DNS requests, not just requests directed at the ISPs DNS server. Are you using this configuration now? "DNS Server Not Responding" and "Network Not Responding" Like the title says, I keep getting those errors, be it in browsers (Chrome and Microsoft Edge) or video games. 75. ; Then Select the “DNS Settings” tab. A user asks how to change dns server with xFi router and gets answers from other users and experts. What is going on with Xfinity DNS servers in the Sacramento/Folsom area? Are too many people working from home these days and Xfinity just cannot keep up? We use Cookies to optimize and analyze your experience on our Services, and serve ads relevant to your interests. There are DNS entries on the ARRIS DHCP server settings, but they don't work. About 5 months ago I got a new router and used the same settings for ipv6 that my last router used. 8 and 8. If I run the same on a server on Digital Ocean's network: "chimtitan. Yes, Comcast Xfinity has a DNS Welcome to the Xfinity community! Our community is your official source on Reddit for help with Xfinity services. 182, 68. teleperformanceusa. I researched and came across an article from around 2009 that mentioned something about opting out of their “domain helper”. com server is down right now or having outage problems for everyone or just for you. 1?. 74. xx not 192. Then, clear excess DNS cache or disable features like peer-to-peer Windows update, antivirus, and firewall protection. Maybe do it with a "hosts" file in your OS, or if it's a VPN connection, have the VPN admin push DNS servers and routes to bypass your DHCP settings? Sometime around midnight (PST) this morning (2025/03/17), Xfinity stopped sending DNS All devices in the house (computers, phones, TVs, etc) stopped resolving names, so definitely something upstream and not connected to an individual device I am usually asleep at that time so the family just went to bed Comcast (Xfinity) has their DNS servers hardcoded into their gateways, and denys any 3rd party dns server requests and redirects traffic to their servers. 239 c-24-19-134-239. Follow Our Guide to Get the Best Servers For You. You might be able to set DNS manually on a client and point it at your own local resolver if you are trying to do that. Your two options are one, to hook your router to the xFi gateway, put the xFi gateway in bridge mode and change DNS in your router. fyrebyrds76. 111. If you have questions about your services, we're here to answer them. user_6c960c. The normal Comcast DNS Servers reports the correct IP. 8 and try steps 4 and 5 again replacing 75. com to an IP address). Reply. There are DNS servers that you could point your router to that block unsavory sites. But you can't disable IPv6 or set an internal IPv6 DNS server, so devices will still use Comcast even if you use another device for IPv4 DHCP. 11. it should resolve to 208. You cannot modify the DHCP provided DNS servers in the xfi router. The Domain Name System (DNS) translates the names you type in your browser address bar into the network address of a website. Support. 168. Run a test to 75. Im just trying to setup PiHole, any feedback/help is much appreciated! The Comcast/Xfinity DNS servers 75. If you are experiencing DNS server issues on Comcast Xfinity, there are several potential solutions. Is their anyway I can bypass this through dns tunneling or dnscrypt. 201. In my case 8 months rental saved me You'll have an option to "Use these DNS Servers". X and it can't be changed on their cable modem (DHCP) or a 3rd party cable modem you purchase. I. The first method is what I would consider a "recommended" or "best practice" method. 76 This assumes that your "Ethernet Switch" is really being a switch and not a NAT router. @user_md6z7f Thanks for coming to our community for help with your internet connection and proactively advising the bot recommended a tech. , has determined is best, then don't manually set DNS server addresses at all—just let them auto assign. Spiceheads are more than likely familiar with the DNS redirecting that used to be standard practice on the Comcast network. net. If you're renting a gateway you could do the math on renting vs. Learn about the limitations of xFi gateway, the options of bridge mode and DNS was designed nearly 40 years ago, and it hasn't evolved much since. From a host on my Comcast network, the output of "host -t mx chimtitan. At Xfinity, we value our customers' privacy and are committed to providing a secure and reliable internet experience. Those same DNS servers on a different provider return the correct entries. Sign in. These new DNS encryption protocols are called “DNS over HTTPS” I experience this 5-6 times a day. I've tried riunning IPCONFIG to flush the DNS, nosing around on the configuration manager of my router, and turing it on/off multiple times, but nothing has worked thus far. Offers. Explore and find which DNS server you want to use in your Windows or MAC DNS settings. My question is, if I put my modem in bridged mode, and use my own router, and change the settings to use cloudflare DNS servers, does the gateway still capture my DNS requests through Xfinity DNS servers anyways? What DNS server does Xfinity use? There are many DNS servers that Xfinity use including 68. Now you should be able to use 3rd party DNS servers if you so choose because Comcasts "Broadband disclosure" states: Hi we are xfinity customers we have been with xfintiy for 20 years and we have a white xfinity modem/router at our house and I am trying to change the dns server 1 ip address and the dns server 2 ip address on the admin tool site which for xfinity i believe is 10. I would like to look over your account and help in more detail. ro mail is handled by 0 chimtitan. As of today, over 17. DNS (Domain Name Service is used to convert a name like amazon. 0. 4 are Google DNS, and 9. Yes, Comcast Xfinity has a A DNS server lets users easily reach websites, such as www. Depending on who you talk to in support their reasoning varies from security concerns to issues with dynamic devices. I didn't see a way in the Why is xfinity blocking me from using the internet when i change to certain dns servers such as alternate-dns or adguard. DNS server. 8M residential customers of our Xfinity Where have you read that Xfinity forces DNS? I can set OpenDNS on my netgear CAX80 but my issue is more with IPv6 support. Feel free to reference this list of public DNS Servers and even help us add to it! Comcast Business accounts come with a so called "security feature" that is commonly refereed to as a 'Transparent DNS proxy' (aka DNS Hijacking) Even if you specify your preferred DNS servers, Comcast will hijack your queries. 1 We understand your concern regarding the privacy warning on your iPhone related to encrypted DNS traffic. This is not normal DNS behavior. 225. You may need an additional router or replace the Xfinity one to Learn how to configure your Windows 10 network settings for Xfinity Internet. 37. 70. You can try changing them on a client device manually and see if it goes through, I'm not Even your DNS requests to Cloudflare are going via Comcast's serversAND most DNS is not encrypted. To fix DNS server not responding on Comcast’s Xfinity internet, reboot your modem or router and check all the external wirings. It's honestly insane. The Comcast IPv6 DNS servers will be prepended regardless of any other setting, static or dynamic. You can't change DNS servers on Xfinity gateways anymore. 201 . Windows Find outage information for Xfinity Internet, TV, & phone services in your area. Otherwise, you could manually set DNS servers on every device that you want to change from Xfinity DNS, ignoring the automatic DNS servers provided by DHCP. x. Like. FWIW, I've use the default Comcast DNS servers for years and have had no issues. 4. 134 68. Changing your domain lock status; How do I renew my domain name? Domain Forwarding; Registrant Contact - Email Verification The xFi router/modem is setup to use Comcast/Xfinity DNS. The Balance router is also a proxy DNS server, and one if its functions is to substitute lookups for local hosts on the LAN to their local LAN address. com". 198 etc. I see this on my device that plugged in the cable modem and gets DHCP assigned IP address, gateway, and DNS servers. 1 Message. 2 which are Cloudflare DNS servers. If you change the DNS server settings on your computer or devices, our gateway will intercept and redirect to the Comcast DNS servers. The one thing I am not happy with is they have me locked out on being able to choose my own DNS. 1). For ages, the internet got by with IP addresses in the form 104. All public ip A records are returned from Comcast DNS servers, but the A records pointing to reserved ip ranges are not being returned. 134. noip. ro": "chimtitan. Internet. In the extreme the could inject their own advertising too. To fix this you will have to do what opendns says to do with the dns addresses on the network connections of each computer and here is the kicker: You have to go to the advanced button and then the DNS tab inside the network connections and uncheck both check boxes If there is no way to access the Xfinity modem's web page to change DNS server, then bridge mode and an external router is the best way. So, Comcast can still read your DNS requests if it wants to (and it knows which ones to read because it can tell you're always talking to 1. o bdns. There are various public DNS servers available. Jul 16, 2010 Find the IP addresses of Xfinity DNS servers for IPv4 and IPv6 in the United States. 75 with 8. It is only one of many severe limitations that xfinity places on your network if you use their hardware. It also bridges IPv6 to the Comcast modem. The Ultimate Guide to Changing Your DNS Server. Get status information for devices & tips on troubleshooting. This, however, doesn’t mean that CleanBrowsing can’t work on a Comcast Xfinity network, but it does mean it will take a bit more work. Edit the DNS server fields and enter the Comcast DNS server addresses. X. You will likely also have to set the DNS servers manually, to use Comcast's DNS servers use: 75. 87. siteprotect. Can you please click the Direct Message icon at the top right of the page, click on the pen and pad icon, enter Xfinity Support in the "To" section of the chat, ipv6 dns servers and settings I've used xfinity for 6 years and always had ipv6 connectivity. View current DNS records: 1. The admin console on the router won't allow you to change them. buying. which Comcast already knows is google. I had the same issue everybody else does with comcast's new modem/router combo. Reboot your modem or router by pressing the power button and waiting 10-15 seconds before turning it back on. This is because the private DNS servers ought to have an your computer appears to be correctly configured but the device or resource dns server is not responding. A Domain Name System (DNS) allows a site IP address (192. I Comcast IPv6 DNS Server 2001:558:feed::1 Reporting INCORRECT IP Address. I would like to know where the Comcast IPv6 servers are getting their IPv4 addresses? Specifically, the 2001:558:feed::1 server is reporting the IP address of a public site that I own incorrectly. net resets to 69. You can't set DNS on Xfinity gear. x) to be identified with words (*. This meant I know Xfinity doesn't allow changing of DNS server settings on their gateway modems. ro has no MX record". It's entirely unencrypted. 75, 75. com outages. com email access. When unchecked, the Gateway will assign the default DNS server numbers currently in use on the Comcast network to your LAN devices. It's the SecurityEdge. Their post states in part:. 1 (Under Advanced > Network > Internet). Properly configuring the Comcast DNS server address on different devices ensures a smooth and efficient internet browsing experience. I would like to disable IPv6 DNS and More email evil from Comcast Comcast intercepting DNS request and filtering them. Published Feb 5, 2018. 75 75. - I announce the DNS servers both on IPv6 and IPv4 addresses (yep, that's legal) - I announce my DNS domain - it's not a real domain in the world but since I have my own DNS server which is authoritative, all of my systems believe it is real and as long as comcast never creates the domain home. You can test if your queries are being hijacked here: https://www. I have screenshots. for past 3 days i keep getting disconnected from internet with this mesg showing up on win 10 trouble shooter last some were between 20 min to few hrs randomly . Fix DNS Problems. I've been getting DNS server errors for the last three days now. 75 and 75. This not only breaks access to the website but also the swervn. First, Go to the Xfinity website and log in to your account. Between the forced DNS, the limit of 35Mbps (which every Comcast agent promises me is more than enough because they totally understand my specific needs), and the worst customer service I've ever experienced, I'm so miserable using this terrible service. However, the MG8702 stops passing 1. 127. 1. Another feature disabled. 0. Follow Followed Learn how to update your Xfinity Email port settings. 12. 9. hsd1. i have exchanged modem with a new one from xfinity store. New Contributor • 1 Message. com This is a *choice* by Xfinity it is not a defect. PS5 or Xbox? First, we provide known DNS servers used by US ISPs, including Xfinity (Comcast), AT&T Internet, CenturyLink and Verizon. If Assign DNS Manually is selected: I've tried it both ways, set to get the DNS servers from the WAN (Obtain from MSO) where it gets 75. Your wife sounds like mine, a GEM! I loathe Comcast from the Business/Enterprise contracts we have with them, and they provably mis-use residential DNS query metadata, so I’ve not used their DNS servers, ever. 80. Even if you use HTTPS, any third party in the middle of your traffic can see the websites to which You can change your DNS servers from the Network Manager on your OS. 20. Thursday, February 13th, 2025 5:16 AM. – Step by Step ️ How to change the DNS of the Xfinity router. Then, Navigate to the “Gateway” or “Router” section. Routers are notorious for this. I am done with xfinity. 197 Here Are the Best DNS ISP Server Settings in the USA, Plus the Fastest and Most Reliable Public DNS Settings. Run a test to your modem/gateway's external IP address while on your network. 75. 30. This isn’t the first, or last, time that an ISP’s DNS has failed. That means your modem is connected up to one of the regular ports and not a WAN port. cs. 49. 111 within a few minutes. The only common element of the failures is the DNS specification in the router (75. 178 68. 13 (made up). savvis. F. com. o adns. Comcast Cable Communications, LLC __ No: 46 % : 65. AT&T, Comcast/XFINITY, etc. com, by converting a domain name into the Internet protocol or IP address of the website. Xfinity's gateway doesn't have that capability AFAIK. At first I thought it was just my computer, but turns out it's everything I Likely something on your local network was caching the DNS redirects and just needed it's cache cleared and/or rebooted. Even when we specified non-Comcast DNS the issue remained. Xfinity needs to give the customer more control, even the xfinity agent I spoke to couldn’t change it on their end. comcast. 19. Once logged in click on the tile on the top left corner (right next to the The above Comcast DNS servers work just fine to resolve anything else, but they do not seem to be able to resolve "dv. I verified with that ALL of those DNS servers do respond correctly. 181. A VPN is the only way, If and only if you use it Does Xfinity have a DNS server? Yes, the DNS server makes it easy for you to reach websites by easily converting a name into an IP address. 9 is quad9. In the DNS servers field, enter As part of our ongoing efforts to protect our customers, DNSSEC is now automatically included as part of Comcast Constant Guard™ from Xfinity. No matter where I went with SSL, I encountered this. As members of the Digital Care Team here at Xfinity, we can help with a wide array of concerns including troubleshooting, billing, plan changes, and more. 1 manually, then go to the Wi-Fi Settings of your devices, forget/delete the network, then reconnect to A List of public DNS servers published for your convenience. 8 million customers access to DNSSEC-validating DNS servers. 111 address directly, and if I force the NoIP client to re-broadcast its DNS mapping, the mycomputer. In a rather huge step for DNSSEC deployment, Comcast, the largest Internet Service Provider (ISP) in the United States, announced that they have completed the deployment of DNSSEC and have given their 17. Is Xfinity down? Check all xfinity. By selecting Accept all, you consent to our use of Cookies. 8. The only chance is to put the router in bridgemode and I don't want to do that with my setup. Regarding Encrypted DNS: Some Xfinity routers may have default settings that might impact the use of encrypted DNS services. I checked my firewall settings and found that as a DHCP client it received new DNS servers: 162. The issue I receive is no response from the DNS server. Consider switching to public DNS servers such as Google DNS and OpenDNS. 16. CSV; Plaintext; JSON; IP Address Location AS Number Software / Version Checked 24. These are Comcast’s name servers. 51 -> I have a similar problem. 1 year ago. net, I'm golden. Secondary DNS: 75. On the Comcast network they do not. This list of public and free DNS servers is checked continuously. I have been with Cloudflare for over a year (1. That's locked down in firmware. If Assign DNS Manually is checked, you can manually define the primary and secondary DNS servers that will be assigned to all PCs connected to the LAN via DHCP. Don't bother with the comcast DNS. Your Home Network. Comcast has recently started playing with my DNS traffic, and not in the usual clumsy Comcastic manner. 4) 2. A list of the best public and completely free DNS servers, plus why you might want to change them. If connected to any other DNS server it resolves just fine. These servers de-prioritize ICMP traffic and will provide false-positives. 1), but then you have to ask Comcast, send my traffic to 10. By forcing all DNS traffic through their servers to collect data about your internet use that helps them make $$$ at the expense of your privacy. Comcast is one of the largest and most popular internet service providers in the United States, and as such, it had to install new technologies to give the best service possible to its consumers. xx). be. While returning rfc1918 from public dns servers might not be a best practice it is 100% possible. I'm looking for Xfinity Community Forum. Yesterday I got a message saying that Comcast fixed the issue in my area that impacted the internet connection, so I Also, if I set my choice of the DNS server on my router that is bridged to the cable modem, will the DNS lookups still go through Comcast servers? You can use any DNS servers you wish with a third-party routing device (non-Comcast rented equipment). The Comcast DNS provides this 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 Comcast DNS Servers. Run a Comcast pushes out their dns 75. And it reverts back to the xfinity settings after rebooting the device. You could do like so many others have done and are doing and buy your own hardware. com) in order to be remembered more easily, like a phonebook for Sorry about the lengthly post, but I felt like I needed extra verbiage to help suppress my blind rage. You can either set the DNS server on the device itself, or configure a DNS server on a device on the network, and point Check whether Xfinity. I got on my routers' web page and saw they have the DNS set to Comcast servers and there is Are you on the hunt for the best DNS servers for Comcast Xfinity that can offer you a faster, more secure, and reliable internet experience? Look no further! See all United States of America Public DNS Servers List. More Action. How do I view and edit my DNS Records? How do I change my nameservers? Domain Registrations & Transfers. Sign in now. Most folks will use the DNS servers established by whoever set up the local network, whether that was provided by the ISP, or otherwise. Finally, if nothing else works, attempt a router firmware update or hard reset. 8 and 1. You cannot change DNS with comcast equipment. 127 resolver. Does anyone have the address for the Xfinity DNS server? Skip to main content. Additionally, all IPv6 DNS lookups are "intercepted" by Comcast and redirected to their IPv6 DNS servers. 74) which I cannot The key to change the Xfinity Router DNS Settings is that you don’t always need to use the same DNS server provided by your ISP to access various internet activities. 8M residential customers of our Xfinity Internet service are using DNSSEC-validating DNS servers. New DNS protocols now enable encryption of these DNS lookups between a user’s device and its DNS resolver in order to help protect end user privacy and security. Finally, in case there is any confusion, free DNS servers do not give you free internet access. If your router is passing itself as the DNS server, then you should be able to go on the router's admin interface status page and see what DNS And to confirm, the DNS servers are : Primary DNS: 75. If the thought was it is a DNS issue, you don't want to be using their DNS for the first one, or the local address anyway, although that Welcome to the Xfinity community! Our community is your official source on Reddit for help with Xfinity services. Nameservers & DNS. First, check the external wiring and make sure all connections are tight and undamaged. " Changing the dns on a device base is ridiculous, I don’t have time to change the dns settings on about 20 devices. dnsleaktest. Then Look for the “Network Settings” or “Advanced Settings” option. com When I lose internet access and notice messages to the effect that DNS cannot be resolved for web site access, I reboot my router and generally access to the internet is restored. U. ; In this section, You can enter the DNS servers you prefer. If that doesn't help, try changing the DNS servers on the router to 8. 118, where each of You can do one of two things: If your router is just passing Comcast's DNS servers then you can issue an ipconfig /all at the command line and it will tell you (Comcast's servers would be 68. hxriwt fsj iaiess pkudpdud vrmqeof ypewicd fcvdqb viokdi xdua zvej ndq atzjruyol yzyuln nuspgy smkofxo