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🌐 ARRIS SURFboard SB6141 8x4 DOCSIS 3.0 Cable Modem - Retail Packaging- White : Electronics › ARRIS-SURFboard-SB6141-DOCSIS-Cable › dp › B00AJHDZSI
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Modem Upgrade from SB6141?

🌐 r/HomeNetworking
67% Upvoted
August 15, 2018

It’s not just about what the modem can support, it’s more about how much bandwidth the ISP allocates to each channel, as they still have to support a ton of people within those same bands.

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ARRIS SB6141 insufficient for 200 MBPS plan?

🌐 r/Comcast
March 1, 2021
Arris’s SB6141 modem is a docsis 3.0 modem w/ 8 downstream channels X 4 upstream channels. At the time, the XFINITY REP was sorta correct in trashing the SB6141 modem because yes, it will work...but in terms of other modems on the market, your SB6141 is not as good as others! Your “up to 200 Mbps” plan should have a Docsis 3.0 modem w/ @ minimum 24 downstream channels X 8 upstream channels. Ideally for future proofing purposes; I’d recommend buying a Docsis 3.1 modem which is the latest greatest standard; is 32 downstream X 8 upstream channels. More on

The SB6141 does NOT work with higher speed tiers of Spectrum networks.

🌐 r/HomeNetworking
January 18, 2023
Modems are simple math really. DOCSIS 3.0 allowed for channel bonding. Actual speed is around 38mbps per channel after overhead for downstream DOCSIS channels. Modems bond 4, 8, 16, 24 or 32 channels down. So yes, a 6141 bonds up to 8 channels, but that is SHARED between you and everyone else on the "node" (used loosely). So the maximum speed you could ever see is right around 304mbps if you saturated all 8 channels and no one else was home. A 16 channel modem would mean you downloading at fullspeed would still saturate 50% of the total bandwidth on the node. Still pretty scary! Realistically with a 300mbps service level you should consider the modems with the most amount of channels. The issue I would look out for is the latency bug most all 32 channel modems have (still isn't fixed as per DSLReports forums) - see: More on

Is three people *really* too much for a ARRIS SURFboard SB6141 modem and causing it to crash for about an hour?

🌐 r/HomeNetworking
75% Upvoted
November 2, 2019

The modem does not care how many users are on your network. The 6141 is capable of 100 Mbps w/o a problem. It's possible you have signal issues or the modem itself is failing. You can see your modem signal levels by pointing your browser to You can speak to Spectrum to see if your signal levels meet specifications for their system.

Most likely your choices will be to either have a tech visit or buy a new modem. If you have signal issues, a new modem won't solve your problem. Either way, it's probably time to replace the 6141 anyhow.

If you decide to buy a new modem, consider a DOCSIS 3.1 device as it is the newer standard for cable modems. This will give your modem a longer life cycle and will be a better value over the long term.

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Arris / Surfboard SB6141 › residential › support › arris--surfboard-sb6141.html
Learn about the available ports and an explanation of the status lights on an Arris / Surfboard SB6141 cable modem.
Best Buy: ARRIS SURFboard 8 x 4 DOCSIS 3.0 Cable Modem Silver SB6141 › best buy › computers & tablets › wi-fi & networking › modems › cable modems
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User manual Arris SURFboard SB6141 (English - 32 pages) › home › routers › arris › surfboard sb6141
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ARRIS SURFboard SB6141 DOCSIS 3.0 Cable Modem - › electronics › computers › networking › modems
ARRIS SURFboard SB6141 DOCSIS 3.0 Cable Modem
Building upon the success of the SB6121, Arris's SURF board SB6141 enhances your personal media experience, at lightning-fast broadband speed. It harnesses the power of DOCSIS 3.0 technology to bond up to eight downstream channels and four upstream channels — providing you advanced multimedia s
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Cable Modems | SURFboard › products › cable-modems
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SB6141: First Time Installation › consumers › articles › General_FAQs › SB6141-Installation-Setup
ARRIS is known around the world for innovation in communications. The company develops technologies, products and services that make mobile experiences possible. ARRIS portfolio includes communications infrastructure, enterprise mobility solutions, digital set-tops, cable modems, mobile phones ...
ARRIS Consumer Care - SB6141 › consumers › ConsumerProductDetail
SURFboard® Cable Modem · The SURFboard SB6141 is a perfect fit for a blazing-fast home network. The SB6141 is a DOCSIS 3.0 Cable Modem that provides you with 343 Mbps download speeds – perfect for things like streaming HD Video, online gaming, shopping and downloading.
Motorola SB6141 SURFboard DOCSIS 3.0 Cable Modem (Black) | ModemGuides › home › shop › cable modems › charter spectrum › motorola sb6141 surfboard docsis 3.0 cable modem (black)
Motorola SB6141 SURFboard DOCSIS 3.0 Cable Modem (Black)
Compatible with Xfinity by Comcast, Charter, Time Warner Cable / Spectrum, Cox, Suddenlink & Other US Cable Providers Supports Internet Download Speeds up to 343 Mbps DOCSIS 3.0 Modem Only - Wireless Router Sold Separately 8x4 Channel bonding with 1 Gigabit Ethernet Port Supports IPv
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ARRIS SB6141 | DSLReports, ISP Information › hardware › arris › arris sb6141
April 28, 2021 - SB6141 by ARRIS Motorola information and hardware knowledge base
Default settings of the ARRIS SB6141 › arris › sb6141
IP address, password and other login data, which are preconfigured for ARRIS SB6141 SURFboard® Cable Modem router.
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ARRIS Surfboard SB6141 Default Router Login and Password › router-default › ARRIS › Surfboard_SB6141
Find the default login, username, password, and ip address for your ARRIS Surfboard SB6141 router. You will need to know then when you get a new router, or when you reset your router.
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