Status
The statuses listed show the connection state of the cable modem. They are used by your service provider to evaluate the operation of the cable modem.
Startup Procedure
Procedure Status Comment
Acquire Downstream Channel Locked
Connectivity State OK Operational
Boot State OK Operational
Configuration File OK
Security Enabled BPI+
DOCSIS Network Access Enabled Allowed
Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power SNR Corrected Uncorrectables
1 Locked QAM256 21 597000000 Hz 8.5 dBmV 41.4 dB 0 0
2 Locked QAM256 22 603000000 Hz 8.6 dBmV 41.2 dB 0 0
3 Locked QAM256 23 609000000 Hz 8.8 dBmV 41.5 dB 0 0
4 Locked QAM256 24 615000000 Hz 8.8 dBmV 41.4 dB 0 0
5 Locked QAM256 25 621000000 Hz 8.9 dBmV 41.7 dB 0 0
6 Locked QAM256 26 627000000 Hz 9.2 dBmV 41.9 dB 0 0
7 Locked QAM256 27 633000000 Hz 9.3 dBmV 42.0 dB 0 0
8 Locked QAM256 28 639000000 Hz 9.4 dBmV 41.9 dB 0 0
9 Locked QAM256 30 645000000 Hz 9.3 dBmV 41.9 dB 0 0
10 Locked QAM256 31 651000000 Hz 9.2 dBmV 41.6 dB 0 0
11 Locked QAM256 32 657000000 Hz 9.4 dBmV 42.0 dB 0 0
12 Locked QAM256 33 663000000 Hz 9.8 dBmV 42.2 dB 0 0
13 Locked QAM256 34 669000000 Hz 9.8 dBmV 42.3 dB 0 0
14 Locked QAM256 35 675000000 Hz 9.8 dBmV 41.7 dB 0 0
15 Locked QAM256 36 681000000 Hz 9.2 dBmV 42.0 dB 0 0
16 Locked QAM256 37 687000000 Hz 8.8 dBmV 41.7 dB 0 0
Upstream Bonded Channels
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
1 Locked ATDMA 2 5120 Ksym/sec 30100000 Hz 45.5 dBmV
2 Locked ATDMA 1 5120 Ksym/sec 36500000 Hz 45.8 dBmV
3 Locked ATDMA 3 5120 Ksym/sec 23700000 Hz 45.8 dBmV
4 Locked ATDMA 4 5120 Ksym/sec 17300000 Hz 45.8 dBmV
Current System Time: Tue Mar 26 11:25:38 2019
signals are good as you see,but all of a sudden in the logs i saw no ranging response received-T3 timeout followed by no maintenance broadcasts for ranging oppurtunities received-T2 timeout around 20 times all at 1 time then a T4 timeout and modem rebooted.could it have been quick headend maintenance or work somewhere in my area?
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modem event logs question
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[Activate] SB8200 having to re-activate every few days
So I've just upgraded to 1Gbps and bought a SB8200 & was able to do a self-activation online. It works fine for a few days then the activating screen would show up and again I have to through it. I've done this 3x the last 7 days, contacting online chat didn't help much. Any suggestion?
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Best Method to Contact Comcast to Change Plans
Should I call, chat or go online and select the plan? Is one method better to get a better deal or service? I am changing to triple play and have found two plans online that I am considering. There are three TVs, so I'll have to select some options. I 'd also like to buy my own modem and router and do a self-install if possible. Any gotchas I need to look out for ?
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Signal Levels?
Hey folks!
Having issues with my Xfinity internet randomly disconnecting. Can someone look at these signal levels and tell me what you think?
Been having issues using 2 different modems, so I am thinking it's an issues outside the house.
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[IPv6] Are BCI customers still issued a /56? My ASA is receiving a /59
It was my understanding that business customers should receive a /56? I am enabling IPv6 on an ASA 5506, and even though I hint a /56, the Comcast gateway is giving me a /59 ??
interface config:
interface GigabitEthernet1/1 nameif outside security-level 0 ip address x.x.x.x y.y.y.y ipv6 address autoconfig default trust dhcp ipv6 address dhcp default ipv6 enable ipv6 nd suppress-ra ipv6 nd managed-config-flag ipv6 nd other-config-flag ipv6 dhcp client pd hint ::/56 ipv6 dhcp client pd comcast
output of "show ipv6 dhcp interface outside":
GigabitEthernet1/1 is in client mode Prefix State is OPEN Renew will be sent in 1d20h Address State is OPEN Renew for address will be sent in 3d11h List of known servers: Reachable via address: fe80::xxxxxxxxxxx DUID: 00010001242D94A476547D80A7B2 Preference: 255 Configuration parameters: IA PD: IA ID 0x00020001, T1 159478, T2 255164 Prefix: xxxxxxxxxxxxxxxxxxxxxxx::/59 preferred lifetime 318956, valid lifetime 318956 expires at Mar 31 2019 04:28 PM (318525 seconds) IA NA: IA ID 0x00020001, T1 302400, T2 483840 Address: xxxxxxxxxxxxxxxxxxxxxxxx::/128 preferred lifetime 604800, valid lifetime 604800 expires at Apr 03 2019 11:51 PM (604346 seconds) DNS server: 2001:558:feed::1 DNS server: 2001:558:feed::2 Information refresh time: 0 Prefix name: comcast Prefixes sent as hint: ::/56
Ideas?
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Bought House, Major Problems with Comcast
My wife and I bought our dream house up in the mountains, which surprisingly was advertised as having Comcast. In fact, the whole neighborhood was wired for it - perfect! We moved in and over a few weeks learned that the 800 foot drop from the street to the house had been damaged some time between when the previous owner moved out (April) and when we moved in (November). The Comcast tech told me the line appeared to have been cut under our neighbor's new driveway. We have an easement over his property, so the drop was crossing it.
Eventually Comcast got me in touch with their local installation supervisor who told me that they view me as a new customer because I personally did not have service at the address, so they would have to charge me to get connected. He claimed that the old drop could not be repaired or replaced, and that Comcast has no record of this address ever having service. I know that to be a lie because I'm friendly with the former owner and she has years worth of bills, and the Comcast rep admits that there must have been service here because their equipment is in the ground connected to the house. The rep also told me that he had no idea how or why the drop, as it currently exists, got approved, because it doesn't follow their internal guidelines, and he could not approve a new line in the same location. He didn't offer any explanation except that someone must have pulled some strings or knew someone high up.
The previous owner told me an interesting story about her experience moving to this address back in 2011. They bought the house knowing that it didn't have internet, but they had placed a contingency in their contract based on Comcast stating they'd be able to service them. When they moved in, Comcast suddenly told them it'd cost $15,000 to get set up, a huge cost that was never mentioned to them in their previous discussion. So they had a broker go talk with Comcast and somehow the issue got escalated to a point where Comcast agreed to pay for the installation.
Over the course of 3 months, during which I've been using 4g internet getting amazing speeds of around 20kb/s, Comcast managed to get a contractor out here to draw up a plan. It's apparently a complicated installation because our house is at the end of an 800 foot driveway on a very steep hill. Directional boring is required to get the conduit where it needs to be. When the contractors were here, face to face, they told me it would cost around $75,000. We contacted a lawyer, who said our best bet was to go after the pavers, but if the price went much lower than 75,000 then it wouldn't be worth the legal fees. The official quote came through a couple weeks later at $20,400, so the lawyers are out. The price breakdown is $15k for drilling, $5k for labor and materials.
Does Comcast have any obligation to maintain their equipment on the property or are we totally screwed? I get the feeling they're lying about the address not having service because they already ate a $15,000 expense here and don't want to pay for another, but when I mentioned their sketchiness to my lawyer his face paled and he suggested that no lawyer is going to want to go after them. Do we have any other avenues to try and get this fixed? Could it really be possible that they can't just use the existing conduit that was installed in 2012? We are so desperate that we've gone back and forth on just paying the $20k several times, please help!
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[Mobile] Will VZW's free robocall blocking app be available to XM subs?
Will Xfinity Mobile customers also be able to use Verizon's free robocall blocking app? Or will a special XM version of this app be provided?
Verizon Set To Offer Free App To Block Robocalls, New Tech To Combat Spam
By Brooke Crothers, Forbes - March 24, 2019
https://www.forbes.com/sites/brookecrothers/2019/03/24/verizon-set-to-offer-free-robocall-blocking-app-new-tech-to-combat-spam-att-comcast-too/#6070996719ddquote:Verizon is getting ready to offer a free robocall blocking app at the end of this month, as it steps up efforts to combat the growing plague of spam calls.
In 2019, pretty much everyone is on a robocaller's speed-dial list. That often means several spam calls per day.
Verizon knows this of course. It already offers a paid blocking app for $2.99 a month. But the new freemium (free + premium) strategy means that in addition to the paid app, there will now be a free* version.
Verizon expects to have instructions on how you can download and use the free app by the end of this coming week, I was told by Verizon.
Currently, the paid Verizon app tries to block a suspicious call by comparing the call against a massive list of known spam numbers, which is updated constantly throughout the day.
SHAKEN/STIR...what's that?
The future is SHAKEN/STIR. Verizon will tap into this authentication technology to help verify that the phone number on a user's caller ID is the phone number that originated the call.
To put it another way, SHAKEN/STIR (or STIR/SHAKEN as some call it) verification tells consumers if an incoming call is really coming from the number listed on the caller ID display. …Also see: https://www.verizon.com/about/news/verizon-robocallers-your-days-are-numbered-starting-march-verizons-spam-and-robocalling
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[Price] Gigabit price (around Chicago)
Price for Gigabit seems to have dropped a little Greater Chicago area. Saw this on checking the offers page just now. If willing to go paperless/autopay, could be had for $80 with a one year term agreement. Full price now appears to be $110. Not the $139 they charged before. (Internet only).
Previously they did have a term agreement for $110. Not sure if this is news, but it was to me.
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[CustSvc] How do I stop the lies?
Back about a year ago, I signed up for Comcast's Gigabit Pro service. I was delighted to have such great internet at my home, and at a super low cost. I told everyone about it. Talked about it twice on Reddit. Posted in industry-specific Facebook groups. Even referred colleagues to sign up. In total, I believe the account rep I was sending these people to had at least 10 people calling him looking to get it set up. No matter how many people told me Comcast was the devil, I was there telling them otherwise. Telling them how great Comcast was. How they're becoming the best ISP in the world. It took a lot for me to say that, as a great friend runs a small local ISP.
About 2 months ago, I decided to move. Called Comcast, explained to the agent that I had an odd account. Was told that it wouldn't be an issue, would be moved without a problem. Called again, confirmed again. Of course, on installation day, the subcontractor cable guy had no idea what I was even talking about. 3 hours later, I settled for cable internet with the idea they'd actually hold up their end of the promise.
2 months after moving, I still don't have my Gigabit Pro service and Comcast is refusing to even look into my case where 2 of their agents told me that it would be moved just fine. Comcast is saying that since it's a specialized service, they do not have the permission to tell customers it'll be moved.
Now, they're telling me I never had it. They (specifically Hakeem, from the escalations department, who's a total brick wall) cannot explain why I had a Juniper ACX2100 on the account. They cannot explain why I paid a $500 installation fee. They cannot explain why there's fiber at a random apartment in Scranton, Pennsylvania. They cannot explain why they can't go back and listen to the 2 calls from when I confirmed the move.
What they can explain is how they're unwilling and unable to do anything at all to waive, decrease, or defer $5,612* of charges they're claiming it would take to get service installed at my residence. No matter how many times I bring up the confirmation of the move, where it was confirmed that I'd have no problems with my new address, they won't even apologize. Great way to treat a paying cheerleader.
(* = $1,012 construction costs, $1,000 installation fee, and $3,600 of additional monthly charges)
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Class Action Settlement Against Comcast
quote:If you subscribed to Premium Cable and paid a rental fee for a Set-Top Box, you could receive benefits from a class action settlement.
A settlement has been reached with Defendants Comcast Corporation, Comcast Holdings Corporation, Comcast Cable Communications, LLC, and Comcast Cable Communications Holdings, Inc. (collectively “Comcast”) about alleged unfair trade practices related to the rental of “Set-Top Boxes” to customers who subscribe to Comcast’s Premium Cable services.
The Settlement offers a cash benefit to former Comcast subscribers and a cash benefit or in-kind relief in the form of an account credit to current Comcast subscribers who resided in the states of California, Washington, or West Virginia during the Class Period or who opted out of Comcast’s arbitration clause as recorded within the arbitration clause opt-out list kept at Comcast’s offices, and paid Comcast a rental fee for a Set-Top Box at any time during the Class Period.
Your legal rights are affected whether you act or do not act. Read this website carefully.
How do I know if I am part of the Settlement?
To see if you will be affected by the Settlement or if you can get a payment from it, you first have to determine if you are a member of the Settlement Class. The Court decided that the Settlement Class includes all persons who:
Resided in and subscribed to Premium Cable in California, Washington, or West Virginia during the Class Period; or
Subscribed to Premium Cable in any state in the United States during the Class Period and elected to opt out of Comcast’s arbitration clause as reflected in Comcast’s records;
And paid Comcast a rental fee for a Set-Top Box at any time during the Class Period.
The Class Period is from January 1, 2005 to September 5, 2018.
If you are unsure whether you opted out of Comcast’s arbitration clause, then you may call the toll-free number at 1-888-748-8055 or email info@SetTopBoxSettlement.com to determine whether you are recorded as an arbitration clause opt-out within the arbitration clause opt-out list kept at Comcast’s offices. https://settopboxsettlement.com/
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[WiFi] WIFI repeatedly dropping out, loosing internet connectivity
PROBLEM
Arris TG1682G modem dropping WIFI connectivity (10 seconds) resulting in 30 second outage while Laptop can't use WIFI. Modem 2.4 GHZ light drops out 10 seconds, rest of lights stay lit. 5GHZ not being used so never on. Laptop not set to auto connect WIFI Network so once event happens we have a way to investigate the outage. We compare the modem firewall log values from prior time laptop connected initially against next set of values after the outage by manually connecting again to the modem to read the firewall logs for today again (system and event logs empty). Running Wireshark sniffer on laptop validates the modem WIFI drop as well; we see Route Advertisement, Neighbor Discovery Packets for IPv6 and ARP requests of IPv4 looking for MAC Address of the modem being requested as the modem has removed itself from the routing tables. Shortly after this we see Wireshark capture reports nothing more is captured, interface stopped. Even with no connections to the modem the behavior persists (2.4GHZ light goes out) and this cycling was observed directly over 13 days and validated via the firewall logs and watching the light. Resetting the modem did no effect the behavior.
The internal operation of the firewall for IPv6 is causing the problem when it is fed these IPv6 Data Packets. Other traffic appears unaffected so can not attribute to packet corruption on the wire. Modems firewall design to drop or effect a drop of its WIFI Network is because of firewall rules recognizing bad packets ( its Intrusion Detection System performs no actions, just alerts from what I can discern) and its handling of them is at fault. So its imperative to be able to packet sniff IPv6 traffic from within Xfinity directed to the modem as they can not be obtained and dissected from the WIFI side. Once the IPv6 packets are identified, type of intrusion attack determined, the issue can be taken to Arris for rectification of modem behavior. Also, identification of the source IP Address of these packets can be used to locate and shut down their spawn as a preventative but will not eliminate a future hit in the modem.
TRIGGER
We see a Count increase of 18 is a repeatable event for: FW.IPv6 INPUT drop , 4066 Attemps.
Happens every 4 minutes when the rate count for these messages hits 18 more from the last drop, WIFI drops.
The rate of these packets hitting the firewall along with the number of hits appears crucial.
RUN1>
FW.IPv6 INPUT drop , 595 Attemps, 2019/2/25 21:59:48 Firewall Blocked
(WIFI LOST)
FW.IPv6 INPUT drop , 613 Attemps, 2019/2/25 22:05:26 Firewall Blocked
RUN2>
FW.IPv6 INPUT drop , 651 Attemps, 2019/2/25 22:16:45 Firewall Blocked
(WIFI LOST)
FW.IPv6 INPUT drop , 669 Attemps, 2019/2/25 22:22:24 Firewall Blocked
Consistent behavior.
LOST PRODUCTIVITY
So (4066/18) / 2 = 113 lost productivity minutes per day.
Modem Firewall 90 day log show Onset of these messages occurring, correspond with the onset of this problem behavior outage and it persists.
Starts at 2/13/2019 continuing thru 2/26/2019
FW.IPv6 INPUT drop , 4066 Attemps, 2019/2/26 16:05:00 Firewall Blocked Firewall > IPv6
Typical Security (Default) Consisting of:
LAN-to-WAN: Allow all.
WAN-to-LAN: Block all unrelated traffic and enable IDS..
Custom Security
LAN-to-WAN : Allow all.
WAN-to-LAN : IDS Enabled and block as per selections below.
Block http (TCP port 80, 443)
Block ICMP
Block Multicast
Block Peer-to-peer applications
Block IDENT (port 113)
Disable entire firewall
(Notes: Manage your firewall settings.
Select a security level for details. If you're unfamiliar with firewall settings, keep the default security level, Minimum Security (Low).
Typical Security (Default): Allows all traffic from home network to internet and blocks all unrelated traffic from internet to home network.
Custom security: Block specific services as per selection.)
DEVICES USED
I only use a single laptop to connect to the internet and only it thru the 2.4GHZ WIFI. Nothing else is going up thru the modem to the internet. 5GHZ WIFI has been permanently disabled. No other errors exist in the modem or laptop. Signal levels are fine as determined by field tech. Single 150/5 drop; tv, modem, phone.
POSSIBLE TEMPORARY WORKAROUND
Use Laptop to RUN "CMD" to bring up the DOS Box. Then issue a "ipconfig /release" which should result in requesting DHCP/DHCP6 to provide new IP/IP6 Addresses from its pool after dumping the preexisting addresses.
QUESTION
For the next time this happens -
Are there any other ways to find out the problem IPv6 Data Packets or Firewall handling without any hack exposure?
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[Equip] Normal to have modem and voice as separate devices in account?
Recently had a big issue with the rental modem I returned back in August still being on my account and BEING CHARGED FOR IT since then. That's what you get for paperless billing & auto pay, folks.
Had that resolved today and removed from the account, and my phone stopped working (internet stayed active). Multiple support calls later, was told my CM500V did not support voice. I told them that was incorrect seeing that it's been used since August with no issues and it's sort of called V for a reason.... 45 minutes later, she got the voice working.
I noticed in my account that it shows two separate devices for modem & voice, is this correct? Everything works currently, just curious if this will cause issues or anything down the line. I had an issue where we downgraded our TV services and upon doing this it messed up my modem provisioning since it put the rental BACK ON THE ACCOUNT and I don't want this to happen every time I change anything related to the account.
Thanks! Image attached.
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Picking a TV Receiver Box for Triple Play
I am in the process of selecting triple play , I would to get some input on the boxes to select. This is the top tier package that includes DVR service. I have three TVs, one is 4K the other two are 720p.
This package includes DVR service, so the main box CC shows is a DVR box with either a "TV box " or a "TV Adapter" for the other two TVs. Obviously I would don't need HD on the other TV, but what are the features and trade-off with each box. Another is issue is if I would be able to record from each TV or only at the main TV the DVR box.
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[Equip] Looking For New Service, COAM?
I am looking for new service and see a few offers for 100Mbps/125 channels. THe price looks pretty good, but I am wary of all the add on feed.... Regional Sports, Broadcast TV, etc). The fine print says a (TV box or COAM) required. I know if I rent a box from them it will cost me $xx/month.
Forgive my ignorance, what is a COAM? (Google says it is a Coin Operated Amusement Machine, LOL)
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[Firmware] New SB8200 Firmware Update now allows link aggregation
 
FYI - In the https://www.dslreports.com/forum/r31219835-SB8200-32x8-DOCSIS-3-1-cable-modem-Feedback-and-Results-thread~start=1650 thread in the https://www.dslreports.com/forum/motorola forum, ARRIS SB8200 owners on Comcast are reporting that they have received a firmware update (Version SB8200.0200.174F.311915.NSH.RT.NA) that provides a new "Enable LAG" option for Ethernet port aggregation.
The new screen is located at 192.168.100.1/lagcfg.html
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intermittent slow uploads
Hi all,
i posted about this awhile ago, here's the link: https://forums.xfinity.com/t5/Your-Home-Network/Re-Intermittent-Download-Speed-extremely-slow-upload-speed/m-p/3181328/highlight/false#M295565
had a tech come out, cleaned up some cable, removed an older splitter. problem persists. i'll notice my upload speed going down, meaning lag while gaming. my bufferbloat speeds go from a's to f's and ping is 100's to 1000's of milliseconds on upload.
only rebooting the modem (cm600) fixes it. i sometimes get ranging errors in the logs, but not all the time. i also accummulate correctable and uncorrectable errors on download, but there's no accounting on the upload channels.
i've had the cm600 for 2 years. do i just need to keep calling xfinity and reporting it each and every time my download speeds drop and have to reboot my modem?
i've searched and not seen anyone on this forum reporting anything similar. however on xfinity's help site i linked above, there's lots of such posts.
here's pre reboot speed test: http://www.dslreports.com/speedtest/47541093
and post reboot test: http://www.dslreports.com/speedtest/47541209
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[Security] Arris SB6141 cable modem providing quasi-firewall protection?
I have my Comcast/Xfinity cable modem connected to my Win10 PC for my residential internet service. Very simple setup ... no router, no WiFi, no switch. I can see my PC's MAC Address (CPE) in the modem's admin dashboard. Everything works just fine, but I am curious about security.
I understand that a router would provide NAT/SPF services to block unsolicited inbound traffic, so I figured my PC would be exposed without a router. I ran the online probe test ShieldsUp! expecting that it would report my system as vulnerable, but it did not. I even ran it again with my Windows 10 firewall turned off and it still passed!
I am stumped. While I cannot find any detailed technical docs for the SB6141 modem, my understanding is that it does not provide any filtering to block unsolicited inbound traffic that does not originate from PC. Any ideas on what is going on here?
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What time does the data usage reset?
What time PST?
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eMTA Modem deactivated every other day?
So I have one account that's having an odd situation
one day the internet works fine, the next day it redirects to comcast activation... you can reactivate fine... but the next day back to working fine next day back at activation.. now if I dont redo the activation the intenet works again the next day anyways
What in the world would cause this? when the internet is going to activation the phone still works fine... it only seems to impact the internet side... and if you dont do activation at all it just alternates one day on one day off...
comcast support claims it's the modem, which is BS because it's only the internet and it's going to activation which suggests its on comcasts end...
anyone ever see anything like this?
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xfi Advantage with xFi Advanced Gateway- Central Region
Question for those of you that have xfi Advantage with xFi Advanced Gateway, in the central region, which comes with Unlimited Data....
Does the unlimited data show up as a separate line item under the account plan? Does it show up on the meter?
Is it listed anywhere or do we just have " xfi advantage" (one line) and that's all?
Can anyone provide a screen shot if it does show up as a separate line for unlimited data?
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