neomurph's profile

neomurph

New Contributor

 • 

4 Messages

Closed

ASUS CM-16 | Ultimate 500 Inquiry

I recently attempted an upgrade of my Internet Classic 300 service to Ultimate 500 and my order was placed on hold for further information. 

When I checked on the status of my order, I was informed that my modem, the ASUS CM-16 was blocked from their portal for upgrade to Ultimate 500 as it is not certified to work with that package. 

My ASUS modem has always been bonded on DOCSIS 3.1 (activity lights blue across the board, not green which denotes 3.0) and is more than capable of handling the 500 Mbps as the CM-16 is certified to 686 Mbps down and approx. 150+ Mbps upstream. 

My question is why is the ASUS CM-16 banned from Ultimate 500 service when it is capable of the speeds you supply?

Discussions

 • 

Updated 

1.6K

1

0

0

B

BrianM

Moderator

 • 

886 Messages

That is not a DOCSIS 3.1 capable modem, that is only a DOCSIS 3.0 modem. A DOCSIS 3.1 modem is required for the new ultimate package or higher (gigablast).

Brian
Cox Support Forum Moderator

7

0

N
neomurph

New Contributor

 • 

4 Messages

Yes, I knew it was not 3.1 despite being bonded as such. So why was it omitted from certification for 500.  Your answer is simply that it’s DOCSIS 3.1. Can I get the Full technical answer instead of the quick reply? Should my current ASUS modem be green in denoted color for down and up instead of blue then?

Secondarily, I would upgrade to Gigablast and buy a new modem if 3.1 fully supported symmetrical up & down. You stopped doing fiber to home, so no sense in paying for Gigablast “light” until things improve for upstream.

Like

Reply

0

B
bearone2

Contributor III

 • 

1.5K Messages

no it's not bonded 3.1....probably why not certified.

"With speeds up to 680Mbps, this high-speed cable modem delivers speed to spare whether you are streaming or gaming with no recurring monthly rental fees. The ASUS CM-16 is CableLabs ® DOCSIS 3.0 certified to work with Cable Internet Providers like Comcast XFINITY ®, Spectrum ® (Legacy Time Warner Cable ® and legacy Charter ®)"

Like

Reply

0

A
Andrew_Wees

+4 more

Contributor III

 • 

809 Messages

it's blue since boned 3.0 you need d3.1 since that's what cox requires

Like

Reply

0

N
neomurph

New Contributor

 • 

4 Messages

Interesting compared to this information @ https://www.cox.com/residential/support/asus-cm16.html

RECEIVE

 Flashing Scanning for downstream channel. Verify all cable connections and try resetting the modem.
Solid Green None. The downstream channel is connected in DOCSIS 3.0 mode.
Solid Blue None. High speed Internet connection with downstream channels in DOCSIS 3.1 mode.
SEND

 Off Upstream channel inactive. Verify all cable connections and try resetting the modem.
Flashing Scanning for upstream channel. Verify all cable connections and try resetting the modem.
Solid Green None. The downstream channel is connected in DOCSIS 3.0 mode.
Solid Blue None. High speed Internet connection with downstream channels in DOCSIS 3.1 mode.

Like

Reply

0

D
Dave9

Contributor III

 • 

251 Messages

This appears to be a misprint on the Cox site. The CM-16 is a DOCSIS 3.0 modem and the blue lights probably mean that multiple channels are bonded, not that it's running in DOCSIS 3.1 mode (which would be impossible since it is a DOCSIS 3.0 modem).

Even though this modem supports "up to 686 Mbps", it's generally not a good idea to use any DOCSIS device at more than 50% of its rated maximum speed. This is why it doesn't work on a 500 Mbps plan.

Like

Reply