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Item#: N82E16825390004

Motorola Surfboard Extreme SBG6782-AC DOCSIS 3.0 AC1750 Cable Modem WiFi Router with build in MoCA(SBG6782-AC)

  • Wireless speed up to 1750Mbps
  • Cable download speeds up to 343 Mbps, upload up to 131Mbps
  • Compatible with Time Warner, Comcast, Charter, and others
  • Built-in MoCA adapter
  • 4x Gigabit ports
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SBG6782-AC SURFboard DOCSIS 3.0 Cable Modem 10/100/1000Base-T Ethernet (RJ-45)

Motorola's SBG6782U-AC Wireless Gateway powers the delivery of today's innovative, ultra-broadband services both in and around consumers' homes. Using 802.11ac technology, the SBG6782U-AC provides consumers with the fastest Wi-Fi® available on the market today. Easy to setup and use, the SBG6782U-AC's advanced feature set includes sophisticated, DOCSIS 3.0 channel bonding and best-in-class RF immunity, which delivers the speed and reliability demanded by today's smart home applications. Equipped with such features as a Wi-Fi pairing button and user-friendly, online diagnostics and configuration, the SBG6782U-AC is as easy to setup as it is to use.

Best in Class Wi-Fi® Performance

  • Dual Concurrent Radios with theoretical wireless throughput of over 3 Gbps
  • High Power MIMO Antennas provide connectivity over 450'
  • Uninterrupted streaming video
  • Lightning speed gaming
  • Maintains performance, even when supporting multiple network users



Four Products. One Device.

  • DOCSIS 3.0 Cable Modem
  • 802.11ac WiFi Router
  • 4-Port Gigabit Ethernet Router
  • MoCA® Networking for Smart Devices

What is a DOCSIS 3.0 Modem?

  • DOCSIS is the technology used by Cable Operators to provide Internet access via the modem.
  • DOCSIS 3.0 is the latest version of that technology, providing download speeds up to 343 Mbps!

Why 802.11ac WiFi?

  • Speed: It's the fastest wireless technology available today, providing up to 1800 Mbps!
  • Coverage: A 3x3 antenna array provides whole-home coverage
  • Convenience: Using BeamForming Technology, the wireless signal follows you around the house!

What's so special about a Gigabit Ethernet 4-Port?

  • A 4-Port Ethernet hub supports multi-device networking.
  • And it enables high-speed connectivity for lightning fast streaming needs.

What is MoCA®?

  • MoCA® is a technology that allows you to create a wired connection where there may not be one today.
  • Using the existing cable wiring in your home, MoCA® creates a high-speed wired Ethernet network.

Why MoCA®?

  • It provides the speed and reliability of a wired connection for things like online gaming and HD video streaming.
  • No interference from other devices, no hiccups, jitter or lag time.
  • Plus, it frees up your wireless network for things like email and surfing the web.


  • The SBG6782-AC is compatible with major U.S. Cable providers such as Comcast/Xfinity, Cox, and Cablevision.
  • Also, it works on the latest IPv6 Internet standard, which allows for multiple, simultaneous browsing sessions on multiple devices.


Easy to Setup and Use

  • Plug-and-play installation
  • Wi-Fi® pairing button for easy Wi-Fi Protected Setup™ (WPS) Wi-Fi connection
  • Android App for Wi-Fi Connection Assistance
  • Supports standard Internet browser software
  • Front panel, multicolor LEDs indicate status and simplify troubleshooting
  • User-friendly online diagnostics and configuration

Advanced Services Ready

  • DOCSIS 3.0
  • Channel bonding of up to eight downstream and four upstream channels; capable of data rates of over 340 Mbps for Internet connectivity in the received (downstream) data stream and over 100 Mbps in the send (upstream) data stream
  • 1 GHz-capable tuner
  • Best-in-class RF Immunity, built into Motorola SURFboard products since 2006, protects against potential service impacting interference
  • Supports both IPv4 and IPv6
  • Includes MoCA® 1.1 for distribution of multimedia services to other MoCA-enabled devices
  • Beamforming support for optimal Wi-Fi® delivery
  • Versatile and Convenient
  • Backwards compatible to 802.11a/b/g/n
  • Backwards compatible to DOCSIS 1.x and 2.0
  • Integrated 2.4 GHz 802.11n and 5 GHz 802.11ac Wi-Fi® access point, concurrent radio operation
  • 3x3 MIMO antenna arrays offer performance benefits for wireless LAN (WLAN) access points
  • High-gain Wi-Fi® output, +26 (2.4 GHz radio) and +23 (5 GHz radio) dBm added for optimized throughput over a greater range
  • Four-gigabit Ethernet ports enable flexible, high-speed connectivity with Auto Negotiate and Auto MDIX
  • Support for Multicast IP services
  • Support for multiple Guest SSIDs for segregated networks
  • MoCA reject filter ensures care-free interoperation between MoCA and DOCSIS
  • Internal power supply eliminates bulky transformers

Reliable and Secure

  • WEP/ WPA/WPA2 Wi-Fi® security
  • Advanced firewall with DoS protection and intrusion prevention
  • Enhanced security: supports AES traffic encryption


  • Increases user satisfaction with additional wireless throughput, reach, range, and robustness
  • Extended range capability reduces client device disconnects or poor service due
  • Supported by Motorola's highly rated Consumer Support
Cable Interfac F-Connector, female 75 O
Network Interface Four one-gigabit (10/100/1000) Ethernet ports
2.4 Wi-Fi Interface 802.11n Wi-Fi (also certified for 802.11a/b/g)
5 GHz Wi-Fi Interface 802.11ac Wi-Fi (also certified for 802.11 a/b/g/n)
Regulatory RoHS compliant, FCC, UL listed (U.S. and Canada),
Industry Canada, EnergyStar, VCII, JATE
DOCSIS 3.0 Bonding capability of 8 downstreams and 4 upstreams
MoCA 1.1 Share cable interface F-Connector
Dimensions 8.8 (h) x 2.1 (w) x 10.1 (l) in (224 x 54 x 256.5 mm)

Learn more about the Motorola SBG6782




Modem Router Combo


Four Products. One Device.
DOCSIS 3.0 Cable Modem
802.11ac WiFi Router
4-Port Gigabit Ethernet Router
MoCA Networking for Smart Devices

PC: Windows XP, Windows 7, Windows 8, (older versions of Windows, although not specifically supported, will work with this cable modem), UNIX, Linux
Macintosh: Power PC or later; OS 10 or higher
Home Networking Ethernet router and wireless access point

Dimensions 8.8 (h) x 2.1 (w) x 10.1 (l) in (224 x 54 x 256.5 mm)
DOCSIS 3.0: Bonding capability of 8 downstreams and 4 upstreams
MoCA 1.1: Share cable interface F-Connector

Input Power
North America 105 to 125 VAC, 60 Hz
Internal Power Supply 50W/12Vdc

Power Management: 802.11e WMM power save/U-APSD (Unscheduled-Automatic Power Save Delivery), 802.3az EEE

DOCSIS Downstream: Modulation 64 or 256 QAM
Bandwidth: Full bandwidth capture window 108 MHz - 1002 MHz

Maximum PHY Rate
DOCSIS: 343.072 Mbps (8 channels) / 42.884 (single channel) @ 256 QAM at 5.36 Msym/s
EuroDOCSIS: 444.928 Mbps (8 channels) / 55.616 (single channel) @ 256 QAM at 6.952 Msym/s

Symbol Rate: 64 QAM 5.057 Msym/s; 256 QAM 5.361 Msym/s
Operating Level Range -15 to 15 dBmV
Frequency Range 108 - 1002 MHz (edge to edge)
Frequency Plans: DOCSIS Annex B
Security: DOCSIS 3.0 Security (BPI+, EAE, SSD)
IPv6 (dual stack)
DS Lite

DOCSIS Upstream
Modulation QPSK and 8, 16, 32, 64, 128, 256 QAM
Maximum PHY Rate @256 QAM at 6.4 MHz
122.8 Mbps: 4 channels
30.72 Mbps: single channel
Channel Width 200 kHz, 400 kHz, 800 kHz, 1.6 MHz, 3.2 MHz, 6.4 MHz
Symbol Rates 160, 320, 640, 1280, 2560, 5120 ksym/s
Frequency Range 5-42 MHz (edge to edge)

Quick Info


  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year

Customer Reviews of the Motorola SBG6782

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  • Anonymous
  • 2/2/2015 2:57:56 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsWiFi sucks

Pros: Good feature set, easy setup

Cons: ISP is responsible for pushing firmware updates, and since it is non standard equipment, that just doesn't happen at all.
The modem and wired router portion of it works fine but the WiFi drops constantly and no amount of time spent fiddling with the settings will fix it. The issue with the WiFi could probably be fixed with a firmware update, but you can't manually update it, so that will never happen.
Don't waste your money.

Did you find this review helpful? Yes No

  • Jeff H.
  • 1/29/2015 5:52:17 PM
  • Tech Level: High
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggs

Pros: Simple to setup and just works fantastic, got rid of lots of errors my old router was giving me.

Cons: None I've seen so far.

Did you find this review helpful? Yes No

  • Tommy T.
  • 1/11/2015 10:41:58 AM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

1 out of 5 eggsDon't waste your money

Pros: Great unit at first look, Has it ALL !

Cons: Unit will not do all available options and remain stable, In-fact factory default will become unstable in a couple days.

Other Thoughts: I'm sure that The issue is that cable company is responsible for firmware upgrade's.
I just put unit in bridge mode and added a standalone router and standalone WIFI bridge, Each one doing its own thing and it seems to work well.

1 out of 1 people found this review helpful. Did you? Yes No

  • Volodymyr Y.
  • 12/29/2014 7:13:15 AM
  • Tech Level: Somewhat High
  • Ownership: 1 week to 1 month

5 out of 5 eggsFast and reliable modem

Pros: Nice web interface, easy to configure, has both 2.4 GHz and 5.0 GHz radios, does not require external power supply, includes cable modem, 4 ports gigabit switch and WiFi access point in single housing. WPS can be disabled in settings. Allows 2 primary wireless networks and up to 6 wireless guest networks. Range is great in 2 levels apartment with brick walls.

Cons: Pretty large device and might not fit all places. Designed to be placed vertically only. Does not allow to enter custom DNS entries.

Other Thoughts: Purchased from local store to replace dated DOCSIS 2.0 Linksys modem. Using this with Cox in Virginia. Cox's subscriber self-configuration did not work and I had to make a phone call. After first call modem started to work properly, but I didn't get expected 50 mbps. Made second call to Cox, employee told me that they didn't switch DOCSIS 2.0 to 3.0 in modem profile configuration file. After this modem is working well and I am getting correct transfer rates.

Did you find this review helpful? Yes No

  • John C.
  • 10/23/2014 8:05:56 AM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

3 out of 5 eggsAvoid If You're An Advanced User

Pros: - A fully-featured home network hub in one attractive white box!
- Easily fits under a desk!
- MoCA is awesome! It's a shame it's not more popular!

- Limited configurability for advanced routing functions.

Other Thoughts: I bought this as a cumulative update to my home network. I wanted 802.11ac, MoCA, a gigabit switch near the modem, and of course the modem itself. This thing has it all in one pretty package and it functions well.

For the standard use case, this product is a fine piece of work. However, I find nothing but disappointment when I want to do advanced tasks:
- Add a new route to a subnet in my home office? Nope! After scouring through all the menus and even telnet'ing in to see what the command prompt had to offer, I had to resort to an Ethernet switch instead.
- Turn on IPv6 and see if I can get an address from my ISP? Nope! This shipped with IPv6 support as I recall seeing the config option and deciding to wait to tackle that another day (the whole no-NAT thing caught me off guard). However, at some point my ISP decided to reconfigure my modem and now IPv6 is no longer an option. Chances are it's not supported by my ISP, but how do I know someone at the C.O. didn't just configure it incorrectly? They don't usually deal with gateways, so it is quite possible they just went with a default profile that only runs IPv4.

I usually avoid all-in-one solutions like the plague because they almost always sacrifice configurability and as parts go out of date space efficiency goes out the window. However, this one was just too perfect. If I had known that I was relinquishing control of the firmware and low-level settings to my cable company I would have avoided this product like a plague.

Oh well, consider this lesson learned. I'll still keep it around as it does serve its purpose, but I won't be willingly buying another gateway for the foreseeable future.

2 out of 3 people found this review helpful. Did you? Yes No

  • Ali B.
  • 10/10/2014 10:32:59 AM
  • Tech Level: Average
  • Ownership: 1 week to 1 month
  • Verified Owner

5 out of 5 eggsYipeee

Pros: Faster than older Motorola SBG6xxx
Now kids iPad Netflix Youtube faster with 5G Wireless no lagging, everyone happy

Cons: NOne

1 out of 1 people found this review helpful. Did you? Yes No

  • Anonymous
  • 10/3/2014 8:21:26 PM
  • Tech Level: Average
  • Ownership: 1 day to 1 week

2 out of 5 eggsCheck with your cable co

Pros: I really liked the design and it just seems to be well built.

Cons: I only have wireless N clients so I can only comment on N performance and I have to say it's nothing special. About the same range as Linksys EA4500. You can't use a special character in your router log in password, not a big deal but it took me a while to figure out why I could not change the default log in password. But the deal breaker for me was the fact you can not use third party DNS. You can not manually enter third party DNS IP. Not a good value for the money.

Other Thoughts: I'm sure all of this can be resolved with a firmware update but you need to check and make sure your cable co will provide updates for this gateway. This is not something that can be done by an individual. Firmware updates are only provided by your ISP. My ISP is Mediacom and as of 10/2014 there is no support for this gateway.

1 out of 1 people found this review helpful. Did you? Yes No

  • Joe W.
  • 8/17/2014 5:48:32 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

4 out of 5 eggsPretty nice package

Pros: 1 Plug 3 devices.

Easy setup with Atlantic Broadband in Western PA/NY

Much faster than my previous modem.

Wireless is acceptable

Cons: 1 Plug 3 devices, single point of failure. Wireless is acceptable but not stellar.

Other Thoughts: Having an all in one can be trouble... on portion fails most likely it all fails would not suggest for a business. But mine has not failed to this point.

Wireless is okay. Not great but acceptable for my situation.

my previous modem was maxed at 15mbps, when I put this on and talked to my provider (atlanticbb) I upgraded to their max (75mb) Tested with some quality sites and saw a few downloads peak at 8.4MBps.. probably some compression there. Speed tests show i get as advertised.

When setting up with your provider disable MOCA until your provider gives you the okay. I was told (didn't confirm) that it could cause problems if the provider is not setup to block the outgoing signal though they have filters to correct this.

Over all so far happy with it. I am upset the price dropped shortly after i ordered though.

5 out of 5 people found this review helpful. Did you? Yes No

  • Lindsay E.
  • 8/13/2014 1:42:04 PM
  • Tech Level: High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsAwsomeness

Pros: It is an all in one unit. There is a lot of tweaking capabilities that this thing can do. I bought this to replace a Motorola SBG6580 SURFboard Wireless that I was renting from my provider. Service was always an issue with that modem. Put this new guy into place and my service was so much faster and more stable wired or wireless, and that is saying a lot considering my provider (Cableone). Anybody I meet now and we get to talking about Internet I immediately tell them about this modem.

Cons: None yet.

2 out of 2 people found this review helpful. Did you? Yes No

  • 8/2/2014 4:58:23 PM
  • Tech Level: Somewhat High
  • Ownership: less than 1 day

3 out of 5 eggsthe log in default

Pros: the default log in is
user admin
pass motorola
NOT WHATS IN THE BOOK, admin / password

Cons: also im having slow slow dns issues with this now
im working on it...

6 out of 7 people found this review helpful. Did you? Yes No

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Item#: N82E16825390004
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