This is partially a crosspost from the DD-WRT forums. I upgraded to Comcast Gigabit here in Minneapolis, MN, and I immediately began having issues with streaming to Twitch. I couldn't go more than 5 hours without it lagging out and dropping my upload speed to as low as 2Mbps down from 44. I had only swapped two pieces of hardware; an Arris DOCSIS 3.1 modem and a new ASUS router. My problem turned out to be my router.
I wanted to use QoS on the ASUS router but it required me accept some dumb agreement with TrendNet
[att=1]
So I never enabled QoS on that piece of crap router. I ended up returning it for a Linksys WRT3200 and it not only fixed my upload problems, but it gave me the tools in my router I'm using to having due to DD-WRT. I actually prefer Tomato, but tomato seems to be in a bad place right now.
Why do routers even try? The default firmware in both the ASUS and Linksys routers I got were unusable. I'm using the word "UNUSABLE" here. It's absolutely terrible and you can't do basic things like QoS and DDNS very easily. It's almost bad enough for me to want to vent about it in a youtube video by showing actual examples of just how garbage firmware is on routers out of the box.
As far as Gigabit, I love it and it's worth it. I wish the upload was faster, though. Come on, Comcast. 200Mbps upload minimum!
↧
Upstream issues after getting Giabit.
↧
micro outages
I am having a lot of micro outages, losing connection for 5-10 seconds quite frequently this is a new development nothing has changed inside
↧
↧
MB8600 Constantly Needs Reboots
I frequently have to reboot my Denver area MB8600. Usually, it locks up between 2-10 days of use. Could it be something on the plant causing it to lock up? My signal levels are very good, but I can't check the logs for errors when it locks up (can't get to the 100.1 page). Or should I just try to have Motorola replace it?
↧
Why is upload slow(er) today when download is fast?
Normally my download speed is 170 Mbps and upload 5.2 Mbps. This morning the download is the same high speed, but upload is at 3 Mbps. I was sending a large email and it was way slower than usual. So I ran the Xfinity speed test and got the above numbers. Can some kind soul tell me what might cause the slower upload this morning?
↧
[Speed] Comcast Plan To Increase Upload Speed Any Time Soon??
Does Comcast plan to increase upload speed any time soon I have been stuck with 1.4mbps upload speed for 6 or 7 years now. 1.4mbps is just pathetic I would be happy with 3.5mbps to 4mbps upload speed.
↧
↧
[NEWS] Comcast: 'We're not your mother's cable company'
A pretty candid interview with "top Comcast executive" David Cohen:
https://www.oregonlive.com/silicon-forest/index.ssf/2018/11/comcast_were_not_your_mothers.html
Intro:quote:A top Comcast executive, David Cohen, was in Oregon on Monday to tout the company's latest expansion of its Internet Essentials program - a service that offers online access to those who could not otherwise afford it.
Originally offered to low-income families, Comcast's $10 monthly service (downloads up to 15 megabits per second) is now also available to seniors, people receiving federal housing assistance and low-income veterans.
Comcast is the nation's dominant cable and internet provider, with 600,000 subscribers in Oregon and Southwest Washington. And even as Cohen was touting the service to a group of veterans in Beaverton, President Donald Trump was on Twitter attacking the company for alleged antitrust violations.
Comcast, whose networks feature Trump critics on MSNBC and "Saturday Night Live," is just the latest media target of the president. On Monday, Trump appeared to be parroting complaints from the American Cable Association, a group of smaller cable operators who allege Comcast has made it difficult or expensive for them to access Comcast's own entertainment networks.
During his visit, Cohen - a veteran political operative in Comcast's hometown of Philadelphia - took a few minutes to speak with The Oregonian/OregonLive. He addressed the president's critique, competition from video streaming services and fast 5G wireless technology, and why "a white Jewish guy" is serving as Comcast's chief diversity officer.
↧
temperature and signal fluctuations
i know in cold weather the downstream power levels will rise and the upstream will lower,and in hot weather the downstream power level will lower and upstream will rise.but what about the SNR?
↧
[Connectivity] Comcast Direct forum ignoring threads about internet dropping?
There are only three topics on the Comcast Direct forum that have 0 replies from support:
Internet Dropping Daily
Internet dropping almost every day
Internet Disconnects randomly everyday for a year now!
(Mine is the middle of those three) Is this some sort of conspiracy to ignore connectivity problems, or simply they have no clue what is happening and therefore have nothing constructive to say?
I'm not sure why I think anyone here might know the answer, but I wanted to vent somewhere and had nowhere else to go.
↧
[Signals] Recent Changes
I'm in the Champaign IL area. Did anyone else notice any changes in the last 24 hours or so? I noticed a couple programs that disconnected over night last night. I've now got a different (dynamic) IP than last time I checked. In the past my IP always seems sticky - the only time I see it change is if I'm on vacation for a week or more and power everything down. When I looked at my modem status I'm now showing 16 bonded downstream channels and 4 upstream (I believe this was previously 16/3). No real issues at the moment, just curious if this all changed last night or if I'm the only one. I'm on the Blast 150/10 plan.
↧
↧
[Signals] OFDM channel width reduced
last night during maintenance the width of our OFDM channel was reduced from 92mhz to 50mhz anyone else seeing similar?
↧
[NodePlus0] General Discussion of N+0 deployment activity
I would like to start a thread where we can keep track of the areas where Comcast has started deploying N+0 equipment. Earlier this year Comcast started pushing fiber deeper into the neighborhoods around me but close to 10 months after it was strung/buried it is still sitting unspliced and unlit. The comcast plant in my area is an old Adelphia region that is built on a 750MHz architecture so it's due for upgrade but it appears as if comcast is stalling on these upgrades for some reason. Has anyone else noticed any aggressive node splits and/or amplifier reduction in any other markets?
↧
[WiFi] Xfi Pods & VPN Connection
Up until yesterday, I had no issue with connecting to my work VPN. Now, when I am connected wirelessly through one of my Xfi Pods. my VPN connects, however, my email does not update and certain internal websites won't load, it just hangs up. If I connect my machine wirelessly through the gateway, or wired through the gateway with a ethernet cable, or connect tethered through my ATT phone, all works as normal. I unplugged all my Xfi modules and replugged them in and still have the same issue. As stated, prior to yesterday I did not have any issues. I have made no changes to my network, nor have there been any changes to the VPN.
Any ideas??
Thanks,
Greg
↧
Why does it take 2 days for technician to come out?
A tech was out (not at my request) fiddling with the outside box which knocked out my internet. After Comcast mistake I am now told that there is no one available to fix this for 2 days.
Maybe hire some techs to take care of customers.
↧
↧
[Signals] MB8600 now on two downstream channels bonded
Hello all, long time lurker of these forums first time posting.
After an outage last night (I’m in the Central Valley of California) I logged into my MB8600 and noticed that I only have two downstream channels bonded, all four upstream are still bonded. I still get my full provisioned speed of 150/10 Performance Plus with Blast (180/12 with the over-provisioning).
I thought it’d be interesting to post so others could see. I did try google searching this and other forums extensively for this issue but could not find anyone posting about a decrease in bonded channels.
I tried looking in the logs (which I’ve since cleared) but nothing specific was notated regarding this change and my config file is still the same as it was prior to the two channels bonding. I’m running the 6.1.1.9. Rebooting the modem yields the same result, two channels and full speed.
Gig speed is available in my area now, and prior to this I remembered all 32 (or pretty close to it) channels being bonded but the OFDM PLC didn’t seem to be getting utilized.
I have a screen cap but it appears I can’t yet upload pictures.
The only two downstream channels bonded are:
QAM256 channel 32 657MHz 4.5dBmV with a 42.8 snr
OFDM PLC channel 48 688Mhz 5.7dBmV with 41.8 snr
Upstream channels are SC-QAM:
1 - 32.3Mhz 43.5 pwr
2 - 19.3Mhz 42.8 pwr
3 - 25.7Mhz 43.3 pwr
4 - 38.7Mhz 43.5 pwr
I assume that I’m now primarily utilizing the ODFM PLC for downstream with the lone 3.0 channel as a fall back? Anyone have more insight to why Comcast/Xfinity is doing this?
↧
XFinitywifi using more than mac to identify user
It seems that XFinitywifi is using more the just the mac address to identify the user and maybe blocking some devices.
For about 2 weeks I have not been able to use my Ubiquiti nanostation m5 to connect to XFinitywifi.
It will not bring up the login page as before. I have made no changes on my end, so I think it is something on there end.
Anybody having issues logging into or using Xfinitywifi.
↧
Utility Pole needed for new install.
I'm looking to have Xfinity installed in a newly built home I just purchased. The house is, so far, the only one towards the end of a dead end street so no cable line had been run on the street power poles to in-front of my house.
A tech was sent out to my home but couldn't do the install. Something about an extra pole needs to be put in on the street, since the cable span on the poles cant be over 500 feet. Xfinity contacted the town to arrange for a utility pole to be put in but Comcast said it would only cover up to $1400 of the charge from the town for the pole and the remaining balance by the customer. I am awaiting a call from Xfitinity to find out how much the town charges for the pole install.
Anyone ever have to deal with something similar? I'm wondering how much something like this might cost and if they can charge me for a pole installation on a public street that might later be used to service more homes at the end of the street?
↧
[Speed] latency issues (and how to talk to support about them)
A 9 months or so ago we experienced some issues related to inconsistent latency on upload (+500-1000ms or so) likely bufferbloat related. At the time we had a lot of trouble explaining to xfinity support people what the problem even was. Their speed tests all returned normal results so they either couldn't understand what the problem was or couldn't acknowledge it or something. At the time we ended up "fixing" the problem by buying our own modem and router and replacing the one that they provided based on a tip on a user support forum. That seemed to fix the issue.
Two days ago we started having a similar but slightly smaller issue (+0-200ms or so). Not enough to break basic web browsing or speed tests, but enough to break highly latency sensitive realtime services like live streaming. It started suddenly around 2:30pm local time and has persisted (intermittently) since then. It hasn't gone away on its own after a few days.. getting ready to fight my way through xfinity support.
Question: Has anyone had any success getting support or fixes for intermittent but moderately severe latency issues that don't show up on speed tests? What did you have to do or say to be taken seriously or get to someone who actually understands what latency is and how bad/inconsistent latency is a real problem?
Is this situation (either the latency or the support) any better with Comcast business service?
Any other tips on things I can do on my end to work around or mitigate upload latency issues on the xfinity network?
↧
↧
[Tier] Comcast Extreme Pro In The Chicago Area
Did anyone see that they're offering Extreme Pro here now? I called to see if I could get it but they wanted to redo my whole promo and charge $30 extra for it so I didn't do it. Then went on chat and asked what the UL speed was and was told it's 10 mbps, like on the east coast, to which I declined to upgrade. I was hoping it would be a replacement for the Extreme 300 tier that was discontinued when we got Extreme 250. The 300 tier had 25 mbps UL.
↧
[Connectivity] Near daily internet dropping / disconnects
(Continued from a less relevant thread)
1) My location: City and State.
Folsom, CA
2) A description of the problem.
Internet drops occasionally, but with no visual indications on the modem (that is, status lights still look ok). It comes back up within a few minutes (sometimes 1-2, sometimes 4-5).
3) Is the issue intermittent, constant or does it occur at a specific time of day?
Intermittent at random times and days.
4) Your modem make, model & firmware version. How to find firmware version: Access modem
Motorola Arris SB6183, software version D30CM-OSPREY-1.5.2.3-GA-01-NOSH
5) Describe any home networking if applicable. (i.e. routers, hubs, adapters, etc.)
I don't think it's related, but just one router (plus a switch).
6) List any firewall and/or anti-virus software you have installed. Include what version you have.
Just Windows 10-installed stuff (no 3rd party AV or firewalls)
Here's the Event Log from the last 3 days; I'm attaching the entire event log as well.
Thu Nov 15 09:53:10 2018 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=78:96:84:e9:a1:d6;CMTS-MAC=00:01:5c:63:e2:46;CM-QOS=1.1;CM-VER=3.0;
Wed Nov 14 09:12:37 2018 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 2;CM-MAC=78:96:84:e9:a1:d6;CMTS-MAC=00:01:5c:63:e2:46;CM-QOS=1.1;CM-VER=3.0;
Wed Nov 14 09:12:37 2018 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=78:96:84:e9:a1:d6;CMTS-MAC=00:01:5c:63:e2:46;CM-QOS=1.1;CM-VER=3.0;
Wed Nov 14 09:12:37 2018 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=78:96:84:e9:a1:d6;CMTS-MAC=00:01:5c:63:e2:46;CM-QOS=1.1;CM-VER=3.0;
Time Not Established Notice (6) Honoring MDD; IP provisioning mode = IPv6
Wed Nov 14 04:29:12 2018 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=78:96:84:e9:a1:d6;CMTS-MAC=00:01:5c:63:e2:46;CM-QOS=1.1;CM-VER=3.0;
Wed Nov 14 04:24:52 2018 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=78:96:84:e9:a1:d6;CMTS-MAC=00:01:5c:63:e2:46;CM-QOS=1.1;CM-VER=3.0;
Mon Nov 12 10:51:20 2018 Critical (3) 16 consecutive T3 timeouts while trying to range on upstream channel 1;CM-MAC=78:96:84:e9:a1:d6;CMTS-MAC=00:01:5c:63:e2:46;CM-QOS=1.1;CM-VER=3.0;
Mon Nov 12 10:51:20 2018 Critical (3) Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=78:96:84:e9:a1:d6;CMTS-MAC=00:01:5c:63:e2:46;CM-QOS=1.1;CM-VER=3.0;
Mon Nov 12 10:51:20 2018 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=78:96:84:e9:a1:d6;CMTS-MAC=00:01:5c:63:e2:46;CM-QOS=1.1;CM-VER=3.0;
Time Not Established Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=78:96:84:e9:a1:d6;CMTS-MAC=00:01:5c:63:e2:46;CM-QOS=1.0;CM-VER=3.0;
Mon Nov 12 10:34:25 2018 Critical (3) Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=78:96:84:e9:a1:d6;CMTS-MAC=00:01:5c:63:e2:46;CM-QOS=1.1;CM-VER=3.0;
Mon Nov 12 10:30:05 2018 Critical (3) Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=78:96:84:e9:a1:d6;CMTS-MAC=00:01:5c:63:e2:46;CM-QOS=1.1;CM-VER=3.0;
Time Not Established Critical (3) No Ranging Response received - T3 time-out
↧
How many uncorrectable errors is too many?
My modem has been up and running for a few weeks and I noticed a lot of uncorrectable errors. Is this normal? Here’s my stats. I also checked the event log and see errors. Is this normal or should I put a call into tech support? Only issue I notice notice is connection issues with FaceTime (poor connection at times).
↧