I just signed up for Xfinity/Comcast TV/Internet/Voice service. I know people that have always used their own router with the Comcast modem/router and others just use Comcast’s built in router. I’ve always used my own router with a DSL modem.
Since the Comcast modem/router will be new to me, thought I’d ask if it’s preferred to use its router or continue using mine. I’m presuming range wouldn’t be an issue, but how is the Comcast user interface? For example are some user settings locked out, such as the ability to change or hide the SSID name?
Any comments would be appreciated,
Thanks in advance
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Comcast/Xfinity router or use my own?
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Options for maximizing my 1440 Mbps internet service.
Current setup:
I just upgraded my internet service to 1200 Mbps down, which is overprovisioned to 1440 Mbps.
I just bought an Arris S33 cable modem today with a 2.5 Gbps port (also comes with a 1 Gbps port).
I have an Orbi RBK753S (AX4200) wifi system which has been great, but it does not have multi gig ports at all.
Goal:
I want to maximize my bandwidth, especially for downloads on the computer closest to the modem and router.
I bought the Arris S33 (had a $10 reward certificate) since link aggregation has issues currently and isn't the optimal solution anyway.
Now I need to decide which router / router setup to go with and / or which switch to get.
I can either:
1) Return my current Orbi (RBK753S) and get the Orbi RBK853 and deal with it only having a 2.5 Gbps WAN port and no multi-gig LAN ports. However, at least then I get the full 1440 Mbps, albeit NOT to one single client / device. This would avoid the modem stability issues people are having when using link aggregation with MB8600 and SB8200 modems for tiers > 1 Gbps like mine.
OR
2) Get a somewhat affordable extra router with TWO multi-gig ports (one to use for WAN and one for LAN).
Then I would use the 2.5 Gbps (or 5 or 10 Gbps) LAN port to connect to my laptop, via a 2.5 Gbps USB adapter, and use this extra router as an pricey DHCP server while retaining my current Orbi for wifi given the coverage provided by the router and 2 satellites.
OR
3) Explore *potential* multi-gigabit switch options to get 2.5 Gbps from the modem to my laptop, using the afore-mentioned 2.5 Gbps USB adapter and keep my current Orbi RBK753S.
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[DOCSIS] Any news on Low Latency Docsis
I’m wondering if anyone has a time frame of when this will be implemented. I’m assuming either later this year maybe hearing an announcement at the expo this week or sometime early next year.
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New upstream channels
Just an FYI - our San Francisco neighborhood had an outage this morning and when it was resolved, I had 6 upstream channels instead of 4; five 64QAM and one 8QAM.
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[Connectivity] Arris S33 additional ip
Has anyone gotten the S33 to work with their additional IP on the secondary port? That's all that's holding me back from my purchase. My MB8600 is flawless with this configuration.
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1.2 TB data cap East Coast next year - alternatives for those...
I have Xfinity internet and TV.
Luckily I am on the East Coast so the 1.2 TB monthly data cap is not yet in effect, but it starts next year for us though, so I am trying to plan ahead.
Unfortunately where I live, Comcast is the only allowed / supported ISP. (We have underground wiring throughout the community and no poles within blocks).
Therefore FIOS and Optimum etc. are not even options for me, if I were to be interested in switching (assuming they are good these days - I had both at a former residence, but that was years ago).
I seriously doubt it, but are there any wireless high speed internet options that I may be overlooking (that would not cost more than the overage charges)?
Obviously 5G mobile, if even available here (which it is not yet), would cost a fortune for a truly unlimited data plan with no speed limits which kick in after X GB, let alone 1.2 TB.
Other major ISPS are not imposing caps (yet at least), so hopefully if Comcast starts losing enough Xfinity internet subscribers, they may reconsider their position on caps, or at least raise the caps.
In this day and age where more and more people are working remotely, streaming is becoming mainstream and more and more content is 4K, along with other internet usage increasing dramatically, 1.2 TB is really not all that much...
Anyway, if anyone knows of any potential options for my situation (i.e. Optimum and FIOS are not options due to restrictions noted above), aside from living with the caps of course (which I suspect will end up being the case), I am open to suggestions, thanks!
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[Other] Residential + Business same modem possible?
Hello,
I have the S33 modem which has the dual ethernet ports. I was curious as I have a server and wanted to get a dedicated IP for it. Is it possible to have the S33 modem connected to both residential and business services using the different ports through the same cable?
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Comcast Chicago cermak packetloss
Has anyone noticed an increase in sporadic packet-loss in the Chicago area, particularly with hops/routers within cermak or immediately before cermak?
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[E-mail] howto disable secondary email?
One of our secondary accounts with an @comcast.net email address has become a problem.
We have had that address for the last 20 years. But recently someone else has started -successfully- using it for their own business purposes. I have changed the password and security questions several times. But they still get in to use it.
There used-to be an easy way to temporarily disable a secondary account. But as of 15 minutes ago, I can not find any way to disable it, only to completely delete it.
Does anyone here know a way? Hopefully without involving Comcast tech support. I no longer trust them.
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Considering moving from Centurylink to Comcast ?? have questions
Hi all.
I haven’t been to this forum since is with @home… Anyway. Centurylink is building up fiber all around my area, but sadly, since I am not “new” construction, I do not have that option and even with a twisted pair My current speed w/o a data cap is 120/10. This used to be enough until my kids got older and starting doing online school, streaming videos, doing whatever it is kids do these days….
My current setup is the DSL modem is in bridged mode an all my networking equipment does the rest of the work.
So my questions are:
1. Looks like to avoid the 1.2TB data cap, you either need to rent an xfi modem @ $25.00 a month or pay $30.00 extra a month. - Is this correct?
2. If I get the xfi system whatever that fancy thing is (cable modem I assume), is there an option to run it just as a cable modem and turn off all the other fancy features?
3. Is the 1.4 down/35 up worth the cost and is there a way to bring the cost down at all?
4. Do the self install kits really work? We haven’t had cable in the house since 2003… so umm .. I have no idea how our cabling outside from the house to the comcast equipment is holding up.
5. Are the other tiers of speed good (from 400-800) for streaming 4K video, gaming, etc? Has anyone had issues when using a torrent service w/o vpn?
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First time I saw this in Outage map
Had an outage this morning. When I checked the phone app, it had a note that they were making some network changes. Later on, after it started working, I check the outage map and saw this:
[att=1]
The Details is just that there may be brief interruptions.
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Netgear CM2000 vs Arris S33 vs Motorola MB8611
I know these 3 modems are fairly new, especially the Arris S33. I notice they all have a 2.5gb ethernet port, which I like for future proof. I am upgrading to a 1 gigabit internet with Xfiniy/Comcast.
Netgear CM2000 - $249
Motorola MB8611 - $169
Arris S33 - $169
Why is the Netgear so expensive? I don't mind buying the CM2000 but I would really like to know first if it's even worth it. Is the chipset different in each of these modems? Not sure which one to get.
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Xfinity expansion via FCC Funding
After a couple decades of complaining about being one of only two streets in town not connected to the Comcast plant we have finally been granted relief with the help of the FCC.
The COVID push to student remote learning and home workers brought focus to our situation of being 10 houses, surrounded by public conservation forests, at the dead-end of a road 2 miles from the last connected house on the established Comcast plant. Our U.S. Congresswoman was persuaded to take up our cause and working with a Comcast VP she was able to secure FCC rural broadband development funds to extend the plant to ours and a second similar street at no infrastructure cost to the customers.
The announcement of the deal was October 2020 but work actually only began about three weeks ago. Comcast was said to be ready to go back in February but was waiting for Verizon to move their telephone lines on the utility poles to make room for Comcast. Verizon ended up dropping their lines about 18 inches at the end of April.
Comcast’s arial contractor has run what I believe to be a fiber cable out our road coming from the town. Coming out it is just a wire rope and the suspended fiber because It is about two miles of nothing but forest until you get to the first of 10 houses each then with about 160ft of frontage and a utility pole at the street for each.
They have run the fiber right past my house and down to the end of the road where they then have doubled back up the road with what I believe is a hard line coax.
However this is all just guess work on my part and any help identifying these components would be appreciated.
(Wire rope with just the fiber hanging as it travels down the forest road)
[att=1]
(As it travels through the forest there are occasional loops like this. What is the purpose, is this a spot where a splice needs to happen maybe??)
[att=2]
(Fiber runs passed my house about 1000ft down to the end of the street where they have installed this and the hardline doubles back toward my house. Is this a fiber optic node? Or what exactly is it and the antenna looking structure??)
[att=3]
(Same structure at a different angle)
[att=4]
(The fat hardline doubles back up the road that 1000ft past the narrow fiber seen on the pully. At the house next to mine there is this structure, is it a signal amplifier??
[att=5]
(Close up of the same structure)
[att=6]
(This is the pole at my house, you can see the spot where the Verizon line, now at the bottom, was moved down from.)
[att=7]
(This is a closeup at my pole of what I believe is the coaxial tap for our house, is that correct??)
[att=8]
As I say this is all just educated guesses and any insight from you folks about the service being installed based on this equipment would be very interesting to me.... Thanks.
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List of Multi Gig modems
Trying to make a list of all known MultiGig modems (modems that have 10/100/1000/2.5Gbit/5Gbit/10Gbit etc) ports
so far:
Technicolor CGM4331COM
Arris TG4482
Sercomm ES2251
Motorola MB8611
Netgear CM2000
Netgear CM2050v
Arris S22
what else is out there?
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Xfinity phone number for new installs?
My SIL wants to sign up with Xfinity and isn't comfortable with the web-only system that seems to be their whole public face. Found their local store and even they don't have a listed phone number.
Is there a phone number she can call to sign up?
PM is okay
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FTTH?
Does Comcast/Xfinity have true FTTH I ask because Comcast might be extending service to where I live and the paper work I have seen states FTTH? PS I know nothing about Comcast or Cable internet.
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XB7 Incompatibilities
I just upgraded my home wifi network to the XB7 from a Linksys EA9500 Wifi 5 base system. Out of the 42 devices or so I have, 3 will not connect to the XB7. I have split the networks into 2.4 and 5 Ghz SSIDs, but that didn't help. Devices that don't work:
HP Printer Officejust Pro 7740
Leviton Dimmer Wifi Light switch
Phyn Plus water monitoring and Auto shutoff device
Has anyone else run into these types of issues, and did you find a solution? The HP Printer item is apparently pretty well known but of course HP will not admit they are at fault and their tech support is useless. There are also a few posts about the Leviton light switches not working. The Phyn plus is too niche, but there was at least one other person on Amazon that complained about not being able to connect to the XB7 as well. I don't think the XB7 is at fault here since the other 39 devices don't have any issues.
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Port forwarding on new Gigabit wifi6 modem router
I have in the passed turned off the router on the Comcast modem and used my own router. But, since getting this modem it has actually been rock solid, and I have had no issues, until now.
I do a lot of BBQing and smoking food during the summer months and I have my smoker connected to the internet, so that I can keep a eye on it and be able to make adjustments when needed. I have been using .noip to host a address that I could port forward to my Rpi using port 80. The port number is not an issue as I have tried many different port numbers and none have worked. Anyways, when I make sure my .ddns.net is targeting my external IP address to the modem and I actually when I am able to save settings in the router(separate issue) I'm not able to get it to work. Again it does not matter which port number I try, as I changed them on my Rpi and the router, nothing works and I am not able to view my smoker off my network. I can connect to the Rpi just fine when I type in it's Ip while on network and I can get pushbullet to work and it will send my alerts for any alarms I may have.
I also never have this issue when using my own router. Only with Comcast modem/router.
I really don't want to go and buy an wifi6 router nor do I want to use a older router, that I have, just to get this to work.
I'm not sure what else I can try at this point. It's not the end of the world either, if I can't connect to my smoker to see if my pork butt is getting close to being done, lol. But, having the ability to be able change the temperature when needed is nice to have.
So, does anybody have any suggestions to get port forwarding to work.
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Trying to navigate equipment changes for 1.2 gbps gigabit
Xfinity offered me $70 a month for 1.2 gbps, I know it will be provisioned to 1.44 gbps. I'd like for my computer to be able to get the full speed.
Things I have already done thus far
* Replaced SB6183 with S33. Hardwiring myself into the modem offered me the full speed of gigabit according to my desktop network interface (only 1000 mbps)
https://i.imgur.com/hoQhbtC.png
* Purchased CableCreation USB 3.0 to 2.5 Gigabit LAN Ethernet Cable Adapter, so I wouldn't have to replace my computer motherboard. (No longer use this, see reply later in thread.)
I am having difficulties finding an affordable enough router. Ideally, what I would like to do is find some configuration with a router with 2.5 gig port that will actually work.
Ideally with some switch configuration that would let any router I buy get the full 1.2 gbps from the modem AND let me hardwire myself in. Cheapest one I see is NEW TP-LINK ARCHER AX3200 AX off of ebay for around $200, next one up being the Ax 6000 for $270 ( http://www.amazon.com/dp/B07L56SN8M/?coliid=IDJTYD4MZNLWV&colid=2CG4LYNMKMBFP&psc=1&ref_=lv_ov_lig_dp_it ) . Both of them have ONE 2.5g port. I'm tempted to just pay Xfinity for another IP so I can use both ports on my S33. One so I can hardwire myself into the 2.5 g port and one to hook into my modem. I'm not sure if that's a good solution or not.
EDIT: Checked the possibility of adding a new IP address so I can use the second IP ethernet on the modem and my local Xfinity doesn't offer it any more.
I'm aware I can get a five 2.5g port gigabit switch* off of amazon for $125 but from what I've read that wouldn't work for what I want it to. I want it to go from 2.5 gig on modem to switch to router. But from my research, it has to go from router -> switch -> modem.
Advice would be appreciated.
ASUS AX6000 WiFi 6 Gaming Router (RT-AX89X) appears to be one of the few options with TWO 10 gbps ports which is very alluring but trying to find some cheaper configuration. (Ended up going with different router
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[Security] CableLabs promotes a software solution to mitigate DDOS attacks
 
CableLabs targets DDOS attacks with new security solution
By Alan Breznick, Light Reading - June 3, 2021
https://www.lightreading.com/cable-tech/cablelabs-targets-ddos-attacks-with-new-security-solution/d/d-id/769985quote:Cable technologists have crafted a new software solution to identify and mitigate distributed denial-of-service (DDOS) attacks on broadband networks, as well as pinpoint and isolate the infected devices that provoke those attacks.
Known as Transparent Security, the open-source solution relies on in-band network telemetry (INT) technology to identify the compromised IoT devices and mitigate DDOS attacks, blocking network traffic where it originates on the operator's network. It is enabled through a programmable data plane, specifically one based on P4 protocol.
CableLabs is promoting the benefits of the new technology to its members after conducting a proof-of-concept test with Cox Communications in the Cox labs last fall. In that product comparison trial using programmable switches from Arista and an Intel-supported network, CableLabs and Cox found that the Transparent Security software was able to identify and mitigate DDOS attacks on the cable network in just one second, as opposed to a full minute for a leading commercially available DDOS mitigation solution.
"We've been working on it for two years," said Randy Levensalor, a principal architect at CableLabs who penned a recent blog post on the solution and trial with Chris Sibley, a senior engineer in the advanced network platforms unit of Cox. "With in-band telemetry, we know which possible device is tainted in the network."
In addition, the Cox lab trial validated the technologists' premise that installing and removing the INT header had no observable impact on network throughput or latency levels. "Everything remains the same whether we run our solution or not," Levensalor said.
DDOS growing problem for cable
Although DDOS attacks are not a huge issue for the cable industry just yet, the problem has been growing in scale, especially as more vulnerable upstream traffic climbs. While Levensalor estimates that DDOS attacks affect less than 10% of the upstream traffic on cable networks today, he said the number of attacks is still large in the aggregate and is rising steadily, prompting the need for the industry to be proactive.
"It's a lot easier to stop a few bits [now] rather than 99% of the traffic [later on]," he said. "If all cable operators [adopted this], we could really stem DDOS."
So, satisfied with the initial lab trial results with Cox, Levensalor is now recruiting other cable operators to conduct their own tests of the software solution. Without naming any operators, he is shooting for more lab trials, and even field trials, with other MSOs later this year. He is also reaching out to other cable equipment and software suppliers besides Arista and Intel about getting involved.
"We've talked to other vendors," he said, noting that the cost of the technology is "really inexpensive" because it works on standard white-box network switches. "We're just meeting with our members now."
Levensalor also hopes to make Transparent Security more than just a cable industry initiative. He would like to see other tech players, such as the big telcos and even the big hyperscalers, embrace the technology as well.
"It's not cable-specific but no one else is doing it," he said. "They could deploy it with just a software update."
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