Can't find what you're looking for?
Official
Accepted
Unanswered
Advanced Filters
Search Results (2.2K)
Accepted Solution
Closed
IP GEO location has changed after recent infrastructure work in my area
Last week Comcast was in our area doing some type of infrastructure work and notified us our internet would be up and down throughout the week. The work was completed and now our speeds have improved BUT now my IP address is reporting a location of Sacramento instead of the correct Fresno/Merced mar
Question
•
Your Home Network
Guess what! Wifi calling solved the problem! My daughter was home for the past few days, and I told her to configure wifi calling on her Galaxy S10, because she was going up to the home in the woods the following day. That's the home that has wif
Ooma and the XB7 (Arris TG4482A) Gateway
I've got a home in the woods where mobile cell service is inadequate. I have to walk up the street or drive a mile away to get a decent signal. The home does have Xfinity service that includes the XB7 (Arris TG4482A) gateway, and two X1 TV boxes. Wifi signal within the home is fine, and I connect to
Question
Hi @XfinityAngie, sorry for the delay in replying yet again. I didn't get a chance to really work on this until today. After a lot of experimenting and reading, I was finally able to get this working again. There's something a little strange w
ipv6 connectivity down in the Portland, OR area?
Hello, I have a setup with a Motorola MB8611 and Mikrotik router. I'm configured for both IPv4 and IPv6. I request a /60 prefix, and assign a /64 to my local LAN. This has been working for a long time. As of this morning, my router is getting a valid /128 IPv6 address, and I'm also getting the corre
Question
Accepted Solution
Closed
directly connecting WIndows PC to Xfinity gateway
I just had my Xfinity internet installed this morning. The technicians who did my installation had me test on a WIFI connected laptop before they left to confirm that the service was up and running. This was successful, and WIFI connections have been working great all day. They also told me that I c
Question
•
Your Home Network
Another faith organization here. Experiencing this issue also, have checked MXtoolbox, M365 connection tests, etc. It is not 100% of comcast.net emails, individual mails have no problem, messages sent to 10+ comcast.net addresses are the only
Server at mx1.mxge.comcast.net (2001:558:fd01:2bad::5) returned '421 4.4.2 Connection dropped due to SocketError'
Email sent from Microsoft 365 domain @hillsboropres.org to email addresses in the @comcast.net domain are never delivered. The error message returned to the @hillsboropres.org domain email related to my address is: ...@comcast.net 12/30/2023 4:16:18 AM - Server at BN0PR10MB5239.namprd10.prod.outlook
Question
Accepted Solution
Closed
PS5 keeps losing connection
I’ve been fighting connection issues with my PS5 since I signed up with xfinity. I have an XB6 xFi gateway. I’m able to connect to the WiFi, but initially I had trouble connecting to the internet. After setting the DNS to google’s (8.8.8.8 and 8.8.4.4) and assigning it a static IP, I seem to be able
Question
•
Your Home Network
@user_555232 - You have reached the right place for help to troubleshoot the sent emails from your Comcast.net email address. We'll get to the bottom of this! A few reasons can prevent your recipients from getting your incoming emails. They could be
Email shows as being sent but not being received by recipients
my emails are not being received by the recipients. Can you please help me with this, this is a business account
Question
Closed
Comcast Email account (smtp) not sending when not on Comcast ISP Service
Greetings, I recently moved to Texas and sadly Comcast is not available, but I was told I could continue using my longtime Comcast email account. However, I am unable to send any emails with my email client (Thunderbird) on my MacBook (I can pull email fine via IMAP). I get the following error messa
Question
•
Closed
Starting Citrix Secure Access VPN disables internet traffic
I was just given a new work laptop with Citrix Secure Access VPN (v24.11.1.17) - as soon as I log on with Citrix my internet traffic stops. It doesn't matter if I'm on wifi or cabled to the XFi router/modem (TG02DCW4482CT). I see a lot of posts about VPN issues but don't see anything specific about
Question
•
Your Home Network
Good morning,To clarify a bit further - majority of email services have DMARC, including comcast.net. More details about DMARC can be found here: https://dmarc.org/The issue is more specific to how you're using comcast, aol, and gmail. How are you ex
Erroneous permanent email errors
I periodically get returned email with permanent errors. These can be from a distribution list or to individuals. The addresses on the distribution are from comcast, aol, gmail, snet, and hotmail. The individual failure is most often from aol. Most of the time, all the addresses work. Once in a whil
Question
Closed
Port forwarding with Arris G36 not working
I have my home network based on the TP-LINK router doing port forwarding just fine. Then I received a suggestion from Xfinity to upgrade my modem to get maximum download speed. They recommended the Arris G36 gateway, and I got one to replace my old modem and router. I configured my new gateway for t
Question
•
Your Home Network
... I can't understand why it will not resolve while on the Comcast internet. ... Comcast's DNS does resolve "nexus3.dev.nextworld.net", but they are private 10.x.y.z addresses (see https://en.wikipedia.org/wiki/Reserved_IP_addresses) that are not
DNS resolution failing even with 8.8.8.8 DNS server
One of my work computers that is available via AWS fails to resolve via DNS. While on other WIFI connections, or if I use a website to resolve this site, everything works fine. However, every computer I have at home fails to resolve it on the command line. I have tried even connecting a Mac Mini via
Question
Ugh, the system wouldn’t let me log in with my account (@mundaneum), so I accidentally created the omg account. This response is mine: I did switch the cable but it made no difference. As a test, I used that new Ethernet cable and connected to my la
Netgear CAX80 + TiVo only connects to the service on WiFi, not wired
I recently switched from the Motorola MT8733, which was failing consistently: WiFi would drop to 30Mbps, or drop completely, then go back to 200+Mbps. I went thru the process to contact Xfinity to authorize the Netgear CAX80, and now the WiFi is excellent, I get 400+Mbps on the laptop, and streaming
Question
Accepted Solution
SOLVED : After a ton of troubleshooting and research not documented here, I found an article indicating that Xfinity DVR's ( which I happen to have ) use MoCA for on-demand content and operate at the lower end of the D Band around ~1100 to ~1200 ( I
SOLVED : Are MoCA adapters allowed by Xfinity....
Finding mixed answers to my questions, so I am looking to clarify. Are MoCA adapters allowed to be used by my client PC's to access the Internet while using an Xfinity modem/router. I purchased a MoCa adapter for one of my PC's and I get a link lights for MoCA and Ethernet, but no activity. No data
Question
I recently had a similar issue with godaddy providing a Office365 email - all emails to comcast.net users resulted in 552 5.2.0 Prohibited by policy. GoDaddy support was of no help and just pointed the finger at comcast. Comcast indicated that it's G
552 5.2.0 Prohibited by policy
HI, Need a support on Email got blocked by comcast ISP. Yesterday evening we have sent an email with attachment of 10MB in size. And we got a block error. " The comcast.net server blocked this message from being delivered. While we won't try to send this message again, we will attempt to send new me
Question
Closed
Connection Timeouts on IPv4 Websites and services
I'm having issues connecting to any IPv4 website and most of my online apps are also failing to connect to live services, updated, etc (which I assume is related). Websites were reporting timeouts or unable to be found. The issue affects multiple devices and I can connect to hotspots and such and ge
Question
•
Your Home Network
Severe Speed Degradation - T3 Timeout Errors - Need Technician Dispatch
Dear Xfinity/Comcast Support Team, I am experiencing severe internet speed degradation. After extensive troubleshooting on my end, the following issues remain unresolved and are beyond the scope of router-level software fixes. I am requesting your direct intervention. Modem: Motorola MB8600 (DOCSIS
Question
•
Your Home Network
I'm having the same issue. Freshly installed my router, and without configuring any DNS or port forwarding. It redirects 10.0.0.1 to myrouter.io with every attempt i've tried. I've tested on brave, mozilla, chrome, edge, safari, opera; all do it. HT
Why is 10.0.0.1 pointing to “router.io”?
I’m not able to access the router admin page at 10.0.0.1. It keeps pointing to http://router.io and that page doesn’t even load. I feel it may be certificate related, but not sure how I should fix that. I searched and found a similar issue in another discussion on this same forum, however instead of
Question
I have the same problem with Reverb.com. I have had to go through three support tier-levels so far, with no fix. Comcast says Reverb.com has an invalid sender domain and advised to have them update their DNS records. I'm not a network geek, but this
Emails containing MFA verification codes aren't delivered
Hello, Starting about a week ago, when I try to login to online accounts which require MFA via code sent to my comcast.net e-mail I never receive the e-mail containing the verification code. For some accounts I am able to use alternate methods such as text, but for a few such as reverb.com there is
Question
Well, it's fallout with a business account on Xfinity that requires the business account to use their equipment with their firmware. It's the same with their consumer gear, only in that case, you do have a "bridge mode" option and more flexibility w
flatlander3
commented
3 years ago
to the conversation:
0
0
DNS Hijacking Redux, June/July 2023
I am in the middle of over 6 weeks of a struggle with Comcast's "Security Edge" and DNS hijacking. This has cost my client business and too many billable hours--and I've donated *far* too many unbillable hours, since it's unfair for my client to have to pay to fix this--and it's costing this client,
Question