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Member |
Thanks. I'll look into that. What benefit does that provide? Is this efficiency related? Security related? other? "Wrong does not cease to be wrong because the majority share in it." L.Tolstoy "A government is just a body of people, usually, notably, ungoverned." Shepherd Book | |||
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member |
Efficiency/separation of functions. The modem is made to be a modem, and any other functions are add-ons. Let it be a modem, only. Routers (many of them) have been providing DHCP since the early 1990s, when DHCP came into being, taking over the IP address-assigning function from bootp. In a larger environment (company, enterprise) one would run DHCP on a separate server(s) (Windows server or *nix, usually). Where I was working at the time, we went straight to Windows server to run our DHCP service, when DHCP became a "thing". When in doubt, mumble | |||
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quarter MOA visionary |
Pretty sure the cable model is also a router too otherwise it would not provide DHCP. IF the OP is also using what most people call a "router" for Wi-Fi then this device could provide DHCP and there can only be one DHCP server on the network. So it doesn't matter which device provides DHCP but one or the other will need to be turned off so there is only one. No real advantage of on over the other in this small environment. | |||
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| Savor the limelight |
True story about the xfinity modem/router/wap I'm renting: you cannot turn off the WiFi radios. There is a setting that disables WiFi for each band, but the radios are still transmitting. I have their hotspot service disabled as well, so that's not the issue either. Thanks to this timely thread, my new MT7711 shows up on Friday. Anyone reading this thread in the future before buying a cable modem should make sure there's been a resolution to the latency problems of Intel's PUMA chip. Motorola uses Broadcom and isn't affected. | |||
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| Member |
I use Comcast cable so my router/modem is their Arris, It is/has been flawless since I installed it. I hard wired it to my Apple TV box with a 40' Ethernet cable and it works really well. My TV and sound bar are both Vizio and again system works great. "All warfare is based on deception" Sun Tzu, The art of War | |||
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Nullus Anxietas |
I have a Comcast/Xfinity modem/router/WAP. I turned the radios off on mine. They're off, and they've stayed off through a couple reboots. (Experimental, not necessary, reboots.) Mine is a business class device, though. "America is at that awkward stage. It's too late to work within the system,,,, but too early to shoot the bastards." -- Claire Wolfe "If we let things terrify us, life will not be worth living." -- Seneca the Younger, Roman Stoic philosopher | |||
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| Savor the limelight |
I just figured out why the radios stay on. We're going to file this under the nothing is ever easy, F'me why do I always seem to find a can of worms to open. I have xfinity for internet, TV, and voice. I was paying to rent their modem/router/WAP and figured I buy my own to save the $14 a month and turn off the Wi-Fi radios which were interfering with my WAPs. Sounds simple, right? Not so fast. The main set top box has 6 cable TV tuners in it. These are used to record shows while watching other shows and allow the satellite set top boxes, which don't actually have tuners built in, to show pictures on the TVs they are attached to. This is where it gets complicated. The main set top box uses MoCa to communicate with the xfinity provided modem/router/WAP. Think of MoCA as powerline ethernet adapters that use coax cable instead of your home's AC wiring. The satellite set top boxes connect to the xfinitiy modem/router/WAP box either wired vie ethernet or wirelessly. Here's a diagram of how the main box communicates with the satellite boxes: Main STB <-MoCA, through the coax cable-> xfinity modem/router/WAP/MoCA adapter <- ethernet cable or Wi-Fi -> satellite STB This communication is what allows you to watch shows recorded on the main STB's DVR hard drive on other TVs in your home. It's also what allows you to watch live TV via the main STB's cable tuners. It's also the reason the disabling the Wi-Fi on the xfinity modem/router/WAP does not disable the radios. The satellite STBs still need the Wi-Fi connection to communicate with the main STB. Guess what happens when I use my modem/router/WAP? Main STB <-MoCA, through the coax cable-> my modem/router/WAP/ There's no second MoCA adapter to convert the the signal the main STB is sending out into a format the satellite boxes understand. I didn't notice this at first because the satellite STBs will stream directly from the internet as a backup if the connection to the main STB is lost, but certain functionality is lost and the data counts against my monthly allotment. My wife noticed this and that lead to several hours of searching the internet to find out why my things didn't work the way the used to work. Identifying the issue is half the battle. Now I have to fix it.  I ordered a $75 Motorola MoCA adapter that should arrive on Saturday. So I'm up to $260 to save $14 a month. Also | |||
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| Nullus Anxietas |
Don't feel bad  Three years ago I embarked on a whole-house OTA TV + DVR system that, by the time all was said and done, set me back nearly $1,000. All so as to avoid a costly monthly cable TV or satellite bill.Based on the going cost of basic cable, at the time, I think I estimated break-even at more-or-less about now. That, however, did not take into account replacing the inexpensive Android TV and Fire TV boxen with Apple TV boxen. Conversely: It was based upon one set top box, not three (and, eventually, five). "America is at that awkward stage. It's too late to work within the system,,,, but too early to shoot the bastards." -- Claire Wolfe "If we let things terrify us, life will not be worth living." -- Seneca the Younger, Roman Stoic philosopher | |||
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| Member |
wow. that was a complicated read. didn't understand most of it - jargon. i'm guessing i avoided it because i cancelled tv service - i'm on an internet only plan now. "Wrong does not cease to be wrong because the majority share in it." L.Tolstoy "A government is just a body of people, usually, notably, ungoverned." Shepherd Book | |||
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Shall Not Be Infringed |
Which Xfinity 'Satellite STBs' do you have? I ask because what you're indicating seems unnecessary and contrary to my experience w/ Xfinity until a little over a month ago (3/26) when I eliminated Cable TV from my service (reducing my bill by $100/month!), and switched to Internet only.  I had the Xfinity XiD X1 Adapters on two remote TVs, working with the main Xfinity X1 'STB' w/ DVR. The XiD X1 Adapters are connected via Coax ONLY and do NOT use WiFi. The XiD X1 Adapters utilize the main Xfinity X1 'STB' Tuners/DVR to watch/record/pause Live TV as well as play streamed content such Netflix. I have my own Cable Modem and WiFi/Router (all Netgear), and had this setup for several years! Actually, I've NEVER had a Cable Modem or WiFi Router provided by Comcast as I refused to pay them ANY extra rental fee from day one! Further, it's my understanding that the main/real reason Comcast makes it so difficult control YOUR Wifi is because they want to be able to provide a WiFi HotSpot for use by other Comcast customers, using the WiFi Router in your house, and your available bandwidth!  ____________________________________________________________ If Some is Good, and More is Better.....then Too Much, is Just Enough !! Trump 2024....Make America Great Again! "May Almighty God bless the United States of America" - parabellum 7/26/20 Live Free or Die! | |||
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| Member |
If your buying your own cable modem get a docsis 3.1. It has a substantial better throughput. I would buy a Arris SURFboard SB8200 or a Motorola MB8611 same company different packaging. Supports Internet Speed Plan up to 2000 Mbps | |||
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| Savor the limelight |
Internet only is exactly how you avoided it. If I could convince my wife we don't need cable TV...
The satellite STBs are Xi6 boxes for 4k. They have no tuners and no coax connections. They really do work the way I outlined it above. I originally thought the radios not being off had something to so with the xfinity hot spot service as well, except there is a setting on the xfinity modem/router/WAP to turn that off which I did. With that off, there is no xfinity Wi-Fi connection shows up and yet, there are still strong channel 6 and 40 signals being broadcast with no SSID. They were 40-35dB and clearly coming from inside my house from the xfinity box. They went away when I turn the box off. It took several hours for me to piece it all together, but I'm 100% certain at this point that my post is accurate for the equipment I have/had. | |||
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| Shall Not Be Infringed |
^^^4K....That explains it! I wasn't really questioning whether it worked as you stated, or that you were inaccurate (wrong?), but rather indicating that there might be a different remote adapter/satellite box that would not require the WiFi connection, such as the XiD X1 adapters which only use coax. My statements may have come across a little strong, but Comcast does bring out the anger in me! And I'm VERY happy to be rid of them to the extent that I was able. Ultimately though, 4K changes things....Like Everything!  ____________________________________________________________ If Some is Good, and More is Better.....then Too Much, is Just Enough !! Trump 2024....Make America Great Again! "May Almighty God bless the United States of America" - parabellum 7/26/20 Live Free or Die! | |||
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| Savor the limelight |
I received and installed the Motorola MM1000 MoCA adapter. It works. The light on it indicating there is a MoCA connection lights up. I verified the Xi6 STB is indeed now pulling the video from the main X1 STB's QAM tuners by turning on the TV connected to the Xi6 STB, picking a channel, and unplugging the cable going to my cable modem/router thus breaking the cable modem/router's connection to the internet leaving the incoming xfinity coax cable connected to the X1 STB as my house's only connection to the outside world. The TV kept showing the channel. The picture is noticeably sharper and cleaner as well. It's also using HDR which it wasn't using when the Xi6 was stuck streaming from my internet connection. | |||
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