cable modem
I own the sb6141,my question is I have 3 bonded upstream channels,the upstream modulation for the first one is QPSK,16QAM,64QAM,the second is QPSK,64QAM,the last one is QPSK,64QAM.which one is each...
View ArticleIntermittent Packet oss
I live in spokane valley washington. Every so often, usually at 6-10 at night, i get horrible packet loss. I've seen it get beyond the 50% mark but its usually around 25% packet loss when it happens. I...
View Article[IPv6] getting IPv6 PD and default gateway, but can't route any traffic
I just moved from a building not connected to the cable system back into a building that is, and reestablished service with Comcast (Berkeley, CA). We have an SB6121 connected to an Apple Airport...
View Article[Signals] upstream
what is the difference between the upstream symbol rate of 2.560Msym/sec or 5.120Msym/sec?is one better than the other,if so explain.
View Article[Signals] Upstream channel bonding/modulation question
I was taking a peek at my signals (my modem is the only thing hooked up to the line and is hooked straight from the ground block) and I noticed that the first two upstream channels were 64QAM but the...
View Article[Speed] Netflix Comcast does not support HD streaming
I do not know who to complain to or what to do about this but there is an issue with streaming HD via Netflix and Comcast. My Comcast performance service constantly measures around 28 Mbps on their...
View ArticleUpgrade to Extreme 105 - Questions / Advice
So like most I have tried to call the number on the letter for the free upgrade. I'm not eligible for the upgrade since I'm only HSI. I waited until after March 22nd just in case they upgraded everyone...
View Article[Signals] New Modem - are these acceptable signal levels?
Cable Modem HW Version: 1.5 Vendor: Technicolor BOOT Version: 2.1.8_Technicolor Core Version: 01.E6.10.09 Model: TC8305C Product Type: Technicolor DOCSIS 3.0 advanced cable gateway Flash Part: 64MB...
View Article[WiFi] Cisco DPC3941 Gateway - Rental - AC1750 Wireless! 16x4 D3
I saw this DPC3941 gateway with xfinity labeling today. According to the test report, it is an AC1750 gateway. It's like the DPC3939(16x4), but with AC....
View Article[Signals] ever had the SNR of 1 channel much different than the rest?
recently had the highest frequency 256QAM DS channel's SNR drop to 30. The rest of the channels were the regular 37 that we'd been getting. When this happened, download speeds dropped over 50%. A...
View Article[Business] WSJ:Apple in Talks with Comcast About Streaming-TV Service
Mod..I meant to post this in Comcast Cable TV...Feel free to move. Thanks. Apple in Talks with Comcast About Streaming-TV Service Companies Discuss Service That Would Try to Bypass Web Congestion By...
View Article[Signals] Intermittent dropouts suddenly appeared.
I'd like for someone to take a look at this before I go ahead and subject myself to tech support (again.) I've attached two files: The above is from the modem's status page showing signals, and below...
View Article[Bill] Charging install fee for own modem
When did Comcast start charging for a customer owned modem to have it activated. I upgraded yesterday from a leased Comcast modem to my own modem and I called the local Comcast office here in the...
View Article[CDV] keep getting " this voicemail box is not in service" why?
Why do i keep getting this message and how do i fix it ?
View Article[Speed] Got a year upgrade for less money, questions
I was told I will be upgraded from Performance to Blast. What will my new speeds be, or how can I find out? Do they have to roll out here to do it? My modem is acting flacky and my cable box is also,...
View Article[Connectivity] West Cobb, GA Comcast Area Outages Several Days last 11 Days
This is happening in unincorporated west Marietta, Ga. south of Dallas HWY close to Barrett Parkway. Happens in the early afternoon. Its happened 4 times I know of since 3/8/14.It goes down around 2pm...
View Article[WiFi] Xfinitywifi/Cablewifi "network error"
got to thinking about this reading that thread by ExoticFish & the (conspiracy ;)) theory that Comcast is pushing people to use the integrated gateways to pimp their free wifi thing. The thing is,...
View ArticleA little OUTRAGED ! Extreme 105 NOW Requires Rented Modem
So I purchased the Zoom 5341J to take advantage of the 8 downstream channels now available here. Since then I had some issues, not speed related necessarily. So normal customer service was unable to...
View Article[Speed] Speed drop at certain time of day
Hi all! I'm located in Lafayette, Indiana and just upgraded to Blast! speeds (50 down/10 up) a little over a week ago. Everything has been pretty great and I have gotten a little over 50 down for most...
View Article[Connectivity] Online console gamer only, is cable bad for this?
Well your going to find a lot more complaints on a forum than complements so it's hard to judge. I use internet for online gaming 90% of the time. So is cable internet always going to be a worse choice...
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