[Connectivity] Unable to connect to CableWIFI
I have comcast and I often travel into a Brighthouse area. In the past I would select CableWIFI hotspots, select XFINITY then sign in with my username and password. I have been unable to do this the...
View Article[Connectivity] Ethernet cable question
No doubt this is a "dumb" question but ... which is better for ethernet cables, please: CAT5 or CAT6 ? Or .... ? And what about gold tipped bits? Connection is just my trusty old desktop PC, Vonage...
View Article[WiFi] Comcast secretly enabled 'xfinitywifi' for bridge-mode user!
Despite previously making it incredibly difficult to opt-out of xfinitywifi to begin with, they've apparently secretly turned on this feature to customers who have already opted-out! A bit of...
View Article[Equip] 8 plus 8 equals 16?
I currently have a TC-8305C gateway in bridge mode. So, I thought I would ask for a 16 channel modem via online chat last week. The CSR says sure, we can do that. I get the package today, and I think...
View Article[Equip] Will increasing channels increase stability?
I have an older SB6120 that has 4x3 channels. I was wondering if using a modem that supports additional channels (such as 8 or even 16) will increase the line stability and decrease latency? Or, do the...
View Article[Install] Your self-install kit is on the way. What???
I just received an email from Comcast with a UPS tracking number for a package. (Looks to be valid, not a phishing attempt. The UPS tracking number checks out.) I have only Comcast Internet service, no...
View Article[Connectivity] Should I get a 8 x 4 modem or a 16 x 8 modem?
I have the Blast tier (105/10) and I'm wondering if I should have buy a 8 DS channel modem or a 16 DS channel modem? I have a 4 x 3 modem. (SB6121) currently.
View Article[Connectivity] Occassional Loss of connectivity but modem shows all is fine
First let me say that I am a network Admin and have a fair amount of knowledge with these matters and have seen all manner of issues with internet connections of all sorts over the years. I have a...
View Article[Equip] Questions and findings user bridge mode ( I use the DPC 3939 )
Got a few questions and been curious about some things. I use the DPC 3939 (home). I had some time this morning and been testing on and off for about 6 hours. From all the testing the DPC 3939 ping...
View Article[Connectivity] Network Diagnostic Tool (NDT) JAVA based app
Anyone able to use this tool anymore with JAVA being disabled in Firefox and Chrome? I tried enabling it temporarily but it's blocked by security settings on my PC. http://ndt.anl.gov:7123/ [att=1] --...
View Article[Connectivity] Speed Test Vs. Download Test--with b=Blast??
I am getting what I consider awesome results from the speed test, but should it not reflect on an actual download of a huge file? It should takes seconds to maybe a minute to download a large file such...
View Article[Equip] Router Recommendations
Hi, My old Netgear WNDR3700v2 has been giving my wifi clients issues for a while now, random loss of connectivity, and also does not seem to support IPv6 on my comcast service. I suppose it is time to...
View Article[IPv6] BCI delegated prefix
I now see a /64 delegated to me via Comcast. can I get a /48 from Comcast or what are the options? -- semper idem 1KTzRMxN1a2ATrtAAvbmEnMBoY3E2kHtyv
View Article[Connectivity] "forums.comcast.com" down?
having trouble getting to http://forums.comcast.com and http://forums.businesshelp.comcast.com . everything else works. traceroutes show it failing just past a local regional device. anyone else see...
View Article[Connectivity] 64QAM?
Not sure how long this has been this way, but I noticed all 3 of my upstreams are 64QAM now. I know somewhat recently the 1st was always 16QAM. Northeast Philly here... Will this make any difference...
View Article[Connectivity] SB6183 and T3 timeouts and T4 reboots
I have a SB6120 and experience issues with T3 timeouts and eventually T4 reboots. I've had comcast out a number of times and nobody's been able to fix it. I'm going to be getting a new modem soon to...
View Article[Speed] Comcast 2014 Side Discussion about Doubling Speeds
Mod Note: Tracking here, please: https://secure.dslreports.com/forum/r28975270-Speed-Report-Tiers-Doubling-In-Speed-Here...
View Article[Connectivity] Packet loss issues in Portland Or since 01-09-15
The below is a copy of my post from the official comcast support forums, just looking for any feedback here. Since I rarely post anything I don't get much chance to say this, but this community has...
View Article[Equip] SB5120 for 25 Mbps service?
I have a Motorola SB5120 cable modem like new in box, which I bought from Comcast previously. I am considering returning to Comcast and purchasing their "Performance: 25 Mbps" plan. How well will the...
View Article[Equip] Cisco Modem/Router with X1 question...
Just got a new deal from them with phone. Anyway I don't like the modem they provided it's huge, nor am I going to use the phone, can I just call them up and activate my old modem instead and use my...
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