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Motorola Surfboard Extreme SBG6782-AC DOCSIS 3.0 Cable Modem and AC1750 Dual Band Gigabit Wi-Fi Router
  • Owned For: 1 week to 1 month

Pros: - I love that it's a router and cable modem in one.
- The power supply is built in, so no power brick. It runs fairly cool (maybe because its so big, its a giant)
- The signal strength is good, especially in 5Ghz, which has a hard time going through walls, so now range is better.
- Easy automated activation on Comcast

Cons: - It's large. I had to adjust a shelf so it would have enough head room to breathe.
- It's white. Are we going back to that color again? Most of my other electronics are black, except for my WD Cloud. I think there should be an option for white or black.
-This modem/wireless router seems to have the same issue (and firmware) as the 6580 which I recently replaced for this 6782-AC. It tends to randomly lose internet connection with older devices in the 2.4Ghz band.

Other Thoughts: I bought this at a big box store where the buy is the best, because I wanted it quick :)
- None of the cons of this modem are a deal breaker, but I do wish I could have bought this in black.
- And because with the increased range in 5Ghz I don't even use 2.4G anymore so that firmware issue isn't a problem for me.
- The large size is good for better ventilation and it's a good couple pounds so it's not going to slide around

MOTOROLA SBG6580 SURFboard Wireless Cable Modem Gateway RJ-45 DOCSIS 3.0, 2.0 and 1.0, Euro-DOCSIS 3.0
  • Verified Owner
  • Owned For: 1 month to 1 year

Pros: All in wireless router and cable modem, small footprint.

Cons: Ever since the recent update older devices in 2.4Ghz randomly lose internet access. Resetting the adapter resolves the problem, but it will randomly happen again. I tried many settings and advice from forums with people having similar issues, but the problem continued. I ended up replacing it with the enormous sized 6782-AC(compared to the 6580). Range is better on that unit especially in 5Ghz, but the 2.4Ghz problem still exists, but with better 5Ghz range, I bought a 5Ghz adapter and things fly.

This 6580 is dual band, but they do not run at the same time.

Other Thoughts: I'd recommend the White (and large) 6782-AC over this one because it range is better in both 2.4Ghz and 5Ghz and they run concurrently, the unit seems to run cooler and power supply is built in (no power brick)

MOTOROLA SBG6580 SURFboard Wireless Cable Modem Gateway RJ-45 DOCSIS 3.0, 2.0 and 1.0, Euro-DOCSIS 3.0
  • Verified Owner
  • Owned For: 1 month to 1 year

Pros: I have owned this Motorola/ARRIS modem for a few months now and have not had any problems with it until today (see other thoughts) It's been reliable and quick, works well with my wired and wireless devices plus my WD Cloud

Cons: Either Comcast or ARRIS pushed a firmware update recently that messed up Wi-Fi. (see other thoughts)

Other Thoughts: When I got this modem, the set up page ( was all Motorola, It was simple, basic looking with the features an average user would need. Just within the past couple weeks, either Comcast, or ARRIS (who now operates the Moto SURFboard line) pushed a new firmware which changed everything. The setup page is all ARRIS now, but the new firmware also messed up the Wi-Fi where it would cut in and out. I ended up just factory resetting the modem then setting it back up to how it was and it seems the problems have been solved. The new ARRIS set up page is much better looking than Moto's, and with pretty much the same options, but much easier to navigate and use.


Matthew W.'s Profile

Display Name: Matthew W.

Date Joined: 10/03/06

  • Reviews: 38
  • Helpfulness: 15
  • First Review: 12/28/11
  • Last Review: 04/17/14
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