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[-] WhereGrapesMayRule@lemmy.world 156 points 1 month ago

Get your own gateway. Don't rent theirs.

[-] Semi_Hemi_Demigod@lemmy.world 48 points 1 month ago

You can buy cable modems cheap, too. No reason to use their crap at all.

[-] JasonDJ@lemmy.zip 28 points 1 month ago* (last edited 1 month ago)

"cheap" is a relative term.

Nobody should be buying a DOCSIS 3.0 modem these days. They are obsolete and for some reason still being sold.

A decent DOCSIS 3.1 modem is at least $200. A Next Gen like S34 is at least $220. At least at the big blue big box store. And then you have to get your own wifi.

(However, that big blue store also will give you a 15% discount on any networking purchase if you recycle an old network device...I traded in an old modem but you should be able to find a switch or router at a thrift store and still come out ahead)

It pays for itself pretty quick (by not paying rental fees), but that doesn't necessarily make it cheap.

I absolutely prefer using my own equipment, and do...but it's also worth mentioning that in many markets, Xfinity removed data caps if you have a rented modem.

[-] ProdigalFrog@slrpnk.net 16 points 1 month ago

If a DOCSIS 3.0 modem still can't be saturated by the tier of internet someone is paying for, what advantage would 3.1 have?

[-] kieron115@startrek.website 5 points 1 month ago* (last edited 1 month ago)

If your provider has implemented it (Comcast is the only one i know of in north america) then Active Queue Management is a huge quality of life improvement that you won't know you were missing unless you already had a router that implements queue management. https://www.cablelabs.com/blog/how-docsis-3-1-reduces-latency-with-active-queue-management

[-] JasonDJ@lemmy.zip 5 points 1 month ago

Not buying another modem when the ISP quietly upgrades the CMTS and makes more speed available in your neighborhood.

[-] CaptainPedantic@lemmy.world 3 points 1 month ago

At least in my case, my DOC IS 3.0 modem was having connectivity issues. My neighbor in another apartment had similar issues: dropped connections, slower than expected speeds, etc. Switching to DOCSIS 3.0 modems solved the problem. I guess Comcast upgraded their hardware and it wasn't compatible with my modem anymore

[-] unphazed@lemmy.world 3 points 1 month ago

Yeah I recently switched from cable to fiber (finally available), and prior I was using an old as fuck modem/router that capped at 500Mbps. My internet at fastest was 380. I rarely transfer files over the network, so figured why bother? (I did have Gen1 Google Mesh though to cover dead spots). I had a bit of a shopping splurge when I got fiber. Nothing crazy, just an upgraded mesh and a switch (Why the fuck does Frontier provide an ONT with 8 ethernet ports but only one is active?)

[-] surewhynotlem@lemmy.world 5 points 1 month ago

I used docsis 3.0 and it worked just fine. So why not?

Because docsis 3.0 standard is nearly 20 years old at this point and 3.1 is significantly faster. Docsis 3.1 is only 15, but 4 (which is still 8 years old) probably isn't supported by your ISP yet. But the speed difference is quite noticeable. 3.0 will theoretically do 1gbps down, and 100-200 up, but 3.1 could do 10 down and 1gbps up. In the age of symmetrical fiber internet those upload speeds are dire. 3.1 realistically gets you a symmetrical gig connection.

[-] Zorque@lemmy.world 13 points 1 month ago

Ah, so 3.0 is fine if your internet still sucks. Got it.

[-] surewhynotlem@lemmy.world 5 points 1 month ago

Exactly. So it's great for xfinity

[-] SaltySalamander@fedia.io 4 points 1 month ago

Xfinity likely wouldn't allow you to use it at this point. They've been pushing people toward 3.1 for a while now, and won't register a new 3.0 modem.

[-] ayaya@lemdro.id 5 points 1 month ago

I have a 3.1 modem but my ISP only has 3.0 speeds as far as I can tell. 1000/100 is their highest plan so the extra doesn't really do anything.

My modem is 32x8 and I can see in the UI that only 4 of the 8 upload channels are actually bonded to reach that 100, which is half of the 200 that 3.0 can theoretically do.

[-] Vinstaal0@feddit.nl 3 points 1 month ago

It looks like DOCSIS 3.0 and 3.1 are for coax which should be avoid anyway . VodafoneZiggo is already starting with DOCSIS 4.0.

In my neighborhood you get a choice between coax or nothing.

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[-] SreudianFlip@sh.itjust.works 5 points 1 month ago* (last edited 1 month ago)

Can confirm, I live out in the countryside with only coax available, and a measly 1Gbit down 150Mbit up and 9 - 11ms ping. No caps.

Wait, that’s awesome and steady and reliable. Expensive sure but with heavy multiperson usage and no noticeable issues, I am wondering WTF you’re on about unless it’s some weird edge case?

Maybe you are referring to predatory business practices like oversubscribed lines? That’s not a technical problem.

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[-] Croquette@sh.itjust.works 4 points 1 month ago

I still use coax because I buy internet from a reseller third party and this is what they have. I have 400/50 for 35$, which is a lot cheaper yhan the competitors. No reason for me to change.

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[-] Ulrich@feddit.org 6 points 1 month ago

Can you use your own modem? I thought you had to use theirs?

[-] astrsk@fedia.io 18 points 1 month ago

Yes, look on their website for compatible models, there’s a handful of affordable ones, many which perform better on higher tier connections too. Been using my own modems with Comcast for 25 years.

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[-] Fiery@lemmy.dbzer0.com 9 points 1 month ago

In Europe that used to be the case, but that changed not that long ago. Now providers are legally obligated to allow you to get your own modem

[-] adespoton@lemmy.ca 3 points 1 month ago* (last edited 1 month ago)

You need to use their modem quite often, but you don’t need to use their router. They’re usually “all in one” modem/router things these days, but they’re legally required to provide you with a modem in bridge mode if you ask — at that point, an Ethernet cable attached to their modem is effectively attached to the Internet, and you can put your own hardware inside (firewall, Wifi router, etc.).

While you need to connect to their IP gateway, you don’t need to use their DNS services or anything but their IP gateway service.

[-] WhereGrapesMayRule@lemmy.world 3 points 1 month ago

I use my own modem and my own router with XFinity.

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[-] magic_smoke 3 points 1 month ago

No you can use your own modem with xfinity.

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[-] adespoton@lemmy.ca 46 points 1 month ago

Well yeah. That’s what their tech does. And it’s why I have my ISP’s WiFi offering disabled and the antennas removed and run their router in bridged mode, hooked up to equipment I own that doesn’t call out to the Internet.

[-] possumparty 10 points 1 month ago

Doesn't matter for me, my neighbors use all that shit. There's enough latent rf for them to triangulate literally everything happening nearby.

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[-] avidamoeba@lemmy.ca 7 points 1 month ago

Faraday cage or bust.

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[-] peteyestee@feddit.org 39 points 1 month ago* (last edited 1 month ago)

Didn't read the article, but it's possible to get a 3d map with wifi. They can probably see you.

There is no privacy or security.

[-] hansolo@lemmy.today 9 points 1 month ago

They don't need a 3D map, and the researchers who have rendered a 3D map need a lot of specialized software and resources.

Xfinity doesn't need that. They only need to know when people are online, what they're looking at, and who/how many people are watching TV, and if there's indication of pets in the house. That gives them an advertising gold mine of data.

[-] kieron115@startrek.website 24 points 1 month ago

By default, WiFi Motion is set to detect even small amounts of movement in the motion-sensing areas, including motion caused by small pets.

holy shit lol

[-] Glitterbomb@lemmy.world 19 points 1 month ago

Oh boy, I can't wait for this new wave of paranoid customers claiming their wifi is watching them. Thanks, comcast.

[-] possumparty 28 points 1 month ago

Well, it very well can be used for exactly that.

[-] cymor@midwest.social 16 points 1 month ago

I remember when MIT had a paper on this around 2000

[-] Buske@lemmy.world 3 points 1 month ago

The show continuum used it too.

[-] pyre@lemmy.world 8 points 1 month ago

fucking Batman

[-] rhythmisaprancer@piefed.social 8 points 1 month ago

I don't really understand how this works, so struggle to see any benefits (only drawbacks😐). It does make me thankful my provider is a small local company. Not the fastest, but probably no spying.

[-] BussyCat@lemmy.world 12 points 1 month ago

If you are interested I can try and find the article on it but a few years ago an article came out where they were able to use wifi signals with enough accuracy that they could see a password that you were typing on your keyboard!!

But basically they use the way the wifi signal bounce off things to make an image in much the same way that echo location works

[-] Monument@lemmy.sdf.org 3 points 1 month ago

Like - I’m excited about sensors that uses higher frequency versions of this for health monitoring. I think that’s a perfectly valid use. But also, in my use, I’d be installing it as an IoT device on a network I control, feeding data to services I own.

This use - where it’s opt in for now, until they figure out how to monetize selling how much time you spend in front of the TV, in the kitchen, bedroom, or bathroom (paired with ‘anonymized’ data about what you’re looking at online in each space) is creepy as fuck.

[-] BussyCat@lemmy.world 4 points 1 month ago

Is it really “opt in” or is the opt in only for them to give you the information that they collect? I haven’t read through any terms of service for it but my assumption is they are already selling that data

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[-] kieron115@startrek.website 3 points 1 month ago

DOCIS 3.1 involves more than just speed. No point going over the speed limit if all the traffic lights are timed based on a certain speed. https://www.cablelabs.com/blog/how-docsis-3-1-reduces-latency-with-active-queue-management

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this post was submitted on 01 Jul 2025
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