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8 Messages
MB8600 -- Link aggregation (more than 1Gbit/s)?
TL;DR
Make sure to enable LAG on your MB8600
Make sure your router supports LAG and connect the "appropriate wires" accordingly
The rest of you LAN shall support speeds in excess of >1GBit/s
Your Client Machine Matters -- please, just don't expect anything near 1Gbit/s Internet speeds on an i3 GEN 3 or so, doubly so with IEEE 802.3ab or IEEE 802.11a
Unfortunately
May have been "closed" maybe a bit too early?
Fundamental perquisites:
- >1Gbit/s is supported in your region
- You are on a >1Gbit/s plan to begin with
Theory of Operation:
Please understand the concept of link aggregation https://en.wikipedia.org/wiki/Link_aggregation
No colorful magic involved -- and please understand the role ALL your network elements play.
Please Read The Friendly Manual of your MB8600:
https://help.motorolanetwork.com/hc/en-us/articles/115010589128-FAQ-The-MB8600-has-four-Ethernet-ports-Can-I-use-these-for-connecting-more-than-one-device-

CHANGE THEM!
https://help.motorolanetwork.com/hc/en-us/articles/360002325353-MB8600-No-Internet-Slow-or-Intermittent-Connection
Factory Reset:
Locate the RESET button on the back of your modem.
Press the RESET button and hold it for 30 seconds before you release.After 30 seconds has passed, release the RESET button. This will clear all configuration in the product and pull a fresh connection from your Internet Service Provider.
Pure speculation! Looks like Comcast does not proactively keep customer owned devices current with FW patches Comcast already has released...
You may see "new" functionality in the "Advanced" tab...
Else this exercise is a bit pointless or is it not?
If you have wired devices, connected via a switch to you router, basically have ~2 options:
- 1Gbit/s switch:
- ideally your switch supports LAG too, that is if your router supports WAN and LAN side LAG
OK, that would be an entirely different network infrastructure and topology discussion... - Obviously, you wired clients are limited to 1Gbit/s nonetheless
- They benefit from LAG nonetheless -- Think! connection concurrency
- ideally your switch supports LAG too, that is if your router supports WAN and LAN side LAG
- multi-speed, 10Gbit/s switch:
- If your router offers multi-speed (like 2.5Gbit/s)
- The LAN side speed of you router shall match the switch ports
- While LAG typically may be the better option when it comes to concurrency...
you may see good results with a router offering "only" a single LAN (like 2.5Gbit/s)
- If your router offers multi-speed (like 2.5Gbit/s)
- ~2 options?
- Yep, YOUR network topology may be very different from mine
Just note this also a bit of "measuring the Internet" (JustKidding)
Your individual results may be different.
Single Client:


Touché -- The above is more than just connecting your MB8600 modem with your router -- just sharing inspirations.
Disclaimer
A router capable of WAN and LAN LAG of 1GBit/s or higher was used in the above experiments
Some multi-speed, 10Gbit/s managed switches with at least dual interface LAG support and configured accordingly may have been involved
Some machines with one or more multi-speed, 10Gbit/s port support, some of which with at least dual interface LAG support and configured accordingly, may have been used, too
N.B. Comcast and others Terms, Conditions may apply accordingly.
- Intel i7 GEN 8 or better, with at least 32GB of RAM
- Apple M1 or better, with at least 16GB of RAM (Note: UMA)
- macOS 13.1 (release)
- FreeBSD 13.2 release
The story, all names, characters, and incidents portrayed in this post are fictitious.
No identification with actual persons (living or deceased), places, buildings, companies, and or their products is intended or should be inferred.
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buildersboy
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9 Messages
2 years ago
It took me a whole day to achieve the correct speed. I even blamed Comcast for not provisioning the modem correctly. All said and done I am now receiving the correct speed and upload. In my area for 1000Mbps we only get 20Mbps upload. I knew nothing about hidden ports on the MB8600 until my fact finding mission started. At least I purchased the correct modem out of the gate. It pairs well with my Asus RT AX88u. One caveat is not to use AiProtection and tweaking some wireless settings to get this final result. AiProtection decreases speed almost in half.
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user_edfd28
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8 Messages
2 years ago
Kindly please pardon my certified dyslexia, corrected as per your most kind suggestion.
For no reason, thinking Motorola 6800 comes up...
To for correctness sake, extended the disclaimer on the nature of the router used, too.
Yep, the "hidden ports" of the Motorola MB8600 and how to access them are only described in the:
Not sure why Motorola entertains the extra step of a adding a removable covering to otherwise perfectly working LAG ports, though.
The point of my post was simply to help people to use their actual Comcast CDR they pay for -- without having to buy a new modem.
(OK, that is the business listing of supported devices...)
https://business.comcast.com/support/article/internet/comcast-business-cable-modem-device-compatibility#BI1.25G
But instead use their existing Motorola MB8600 to the same effect -- I know total <censored>
Just ventured into addressing the Motorola MB8600 configuration to get Motorola MB8600 native LAG support up and running I need!
And I indeed dared to readily share my findings -- hoping they may help others... here.
Got Tree?
Sorry to learn about your trouble with what Asus calls "AI Mesh"!
I am not using an Asus router.
Maybe, and only not everything labeled "AI <some thing>" is all that great?
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user_edfd28
Visitor
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8 Messages
2 years ago
Thank you all for the 👍 / +1
Hoping having saved at least one more MB8600 ending up here:
From:
https://en.wikipedia.org/wiki/Electronic_waste
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nene503
Visitor
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7 Messages
2 years ago
To the person who got the MB8600 and Asus ax88u to work together to gets the speeds around 1.1Gbps. What exactly are the settings you turned on and off. Ive turned on LAG on the mb8600 and enabled wan aggregation on my ax88u. The blue ethernet jack lights up blue on the modem when connect to the router via the router's WAN port and port #4 but Im not getting the speeds o 1.1Gbps. I can confirm that I have a plan that theoretically provides me with speeds up to 1.2 Gbps. Thanks in advance!
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user_edfd28
Visitor
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8 Messages
2 years ago
TL;DR
Verbatim 1Gbit/s means just that -- 1Gbit/s -- and NOT 1024 bit/s
In the likely event you want more... your ENTIRE WAN/LAN infrastructure has to be able to support >1Gbit/s -- END TO END! -- including your client machine!
Throw some WiFi IEEE 802.11ax -- 5GHz or 6GHz -- into the mix... and...
And you client machine performance does natter, too
...
To the person who explores MB8600 and Asus ax88u >1Mbit/s
While using a MB8600 -- I'n not using an Asus ax88u but an ET12 here -- hoping some of which may apply to your case
There are some noticeable differences in the spec:
ax88u
ET12
The ax88u LAN side only speaks 1Gbit/s -- that's it!
To get anything more than 1Gbit/s on the (wired) LAN side -- LAG is your friend!
Yep if you want to LAG two or more clients -- you may run out of ax88u LAG groups / ports though....
A MANAGED multi-gig with LAG Switch is what you may be looking for?
Touché... running some kind of like that setup...
Obviously, if you wired client machine speaks only 1Gbit/s -- you may never see >1Gbit/s -- some basic background in my original post above.
Ran the tests documented above on a 10Gbit/s backbone switching with LAG (and OK... e2e 9k MTU just for fun...)
"Cowardly refusing to get into details here"
Let's just say --
ax88u
Read:
Or as some ISP you may or may not have heard of in some <2*5>G advertisement disclaims...or was this in the gazillionaire add of some other ISP?
Mea Culpa -- I always confuse them --
On the risk of repeating repeating.... the client side
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