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Cox internet speed help: Paying for 50 mbs, getting 28 mbs

Posted on 7/8/15 at 9:47 pm
Posted by jordan21210
Member since Apr 2009
13382 posts
Posted on 7/8/15 at 9:47 pm
What gives?


I was getting similar speeds with my DOCSIS2 Motorola SB5101u modem and D-Link DIR-615 N300 router. I just upgraded to a DOCSIS3 Motorola SB6121 modem and D-Link DIR-850L AC1200 router...but I'm getting the same speed results. I know I'm paying for Cox Preferred which is 50 mbs down and 10 mbs up - any ideas as to the issue here? I am going through wifi, but I don't think that would throttle it that much.
Posted by ArkLaTexTiger
Houston
Member since Nov 2009
2462 posts
Posted on 7/8/15 at 9:55 pm to
Test with a wired connection to the router and then connected directly to the modem. That should help determine if it's Cox or the wired or wireless portion of the router that is the bottleneck.
Posted by GrammarKnotsi
Member since Feb 2013
9339 posts
Posted on 7/8/15 at 10:10 pm to
quote:

I am going through wifi, but I don't think that would throttle it that much.



This has to stop...

Can we just kill the tech board if these topics are never going to get a sticky
Posted by jeff5891
Member since Aug 2011
15761 posts
Posted on 7/8/15 at 10:13 pm to
quote:

Paying for 50 mbs, getting 28 mbs
shared circuit bro
Posted by SG_Geaux
Beautiful St George
Member since Aug 2004
77959 posts
Posted on 7/8/15 at 10:13 pm to
1. You are not paying for 50mb. You are paying for "speeds up to" 50mb

2. Wifi has a huge impact. If you are connected to wireless at 40mb then the most you will get is 40mb. If your wifi speed is 12mb then guess what you will get.

People get all enamored with wireless. Wireless is not better than wired in any way except for convenience.
This post was edited on 7/8/15 at 10:15 pm
Posted by jordan21210
Member since Apr 2009
13382 posts
Posted on 7/8/15 at 10:19 pm to
Got consistent results both directly wired modem -> router -> computer and directly wired modem -> computer: 28 ping, 32 mbs up, 6.8 mbs down.



quote:

This has to stop...

Can we just kill the tech board if these topics are never going to get a sticky




This board would be dead if not for questions like this. FWIW, I looked online as much as I could...I'm just not very tech savvy and want to make sure I'm not missing something obvious. No one is making you click on these threads. So if you can't help or aren't going to help, then don't click.
Posted by jordan21210
Member since Apr 2009
13382 posts
Posted on 7/8/15 at 10:22 pm to
quote:

1. You are not paying for 50mb. You are paying for "speeds up to" 50mb

2. Wifi has a huge impact. If you are connected to wireless at 40mb then the most you will get is 40mb. If your wifi speed is 12mb then guess what you will get.




Thanks for the input. I'm not really expecting speeds at 50 mbs, I'm not that naive. I just figured I should be doing better than 32 and 7 when directly wired - but then again, I may just not understand the world of internet speeds.

quote:

People get all enamored with wireless. Wireless is not better than wired in any way except for convenience.



Exactly what it is. I'm just trying to get a decent wireless network so I can stream TV through a Roku 3 and not have to worry about it constantly glitching or buffering etc.
Posted by Asgard Device
The Daedalus
Member since Apr 2011
11562 posts
Posted on 7/8/15 at 10:28 pm to
I get 60/8 here in Central, over wifi.
Posted by ILikeLSUToo
Central, LA
Member since Jan 2008
18018 posts
Posted on 7/8/15 at 10:41 pm to
quote:

This board would be dead if not for questions like this.


You're probably right.

quote:

Got consistent results both directly wired modem -> router -> computer and directly wired modem -> computer: 28 ping, 32 mbs up, 6.8 mbs down.


Assuming you mean 32mbps down. I know there's the technicality of "up to" 50mbps, and maybe I'm just fortunate where I live, but I've always achieved the speeds I pay for (after a firmware update, see below), unless the bottleneck is with the server from which I'm downloading a file.

It could simply be an issue of an oversubscribed area with too many people sharing a node, and your 4 downstream channels being a bottleneck. However, I'd imagine that at this time of night there'd be less activity.

It's also worth noting, however, that when I initially signed up for cox with my own SB6141, I was paying for 50mbps and only getting 25 to 30-ish mbps down at all times of day. Pestered lots of "technicians" who just gave me the tired "max speeds not guaranteed" bullshite, along with the basic diagnostics. One even went as far as re-provisioning my modem (a 2-minute task). It was not until I e-mailed Cox.Help@cox.com (apparently this email address is handled by higher-tier technicians) that they were able to determine that my modem simply needed a firmware update. They pushed it through, and I've been getting the proper speeds ever since (first 50, then 100 when they doubled speeds last year).

So, it may be worth e-mailing and asking them to check for that.
This post was edited on 7/8/15 at 10:44 pm
Posted by GrammarKnotsi
Member since Feb 2013
9339 posts
Posted on 7/8/15 at 10:47 pm to
quote:

shared circuit bro



I pay for 100 and rarely get below 92 wired and 78 wireless(200ish feet away and upstairs)

If you aren't getting what you pay for it is your responsibility to set it right

Posted by jordan21210
Member since Apr 2009
13382 posts
Posted on 7/8/15 at 10:49 pm to
quote:

Assuming you mean 32mbps down


Yes, meant down. Sorry about that.
quote:

It's also worth noting, however, that when I initially signed up for cox with my own SB6141, I was paying for 50mbps and only getting 25 to 30-ish mbps down at all times of day. Pestered lots of "technicians" who just gave me the tired "max speeds not guaranteed" bullshite, along with the basic diagnostics. One even went as far as re-provisioning my modem (a 2-minute task). It was not until I e-mailed Cox.Help@cox.com (apparently this email address is handled by higher-tier technicians) that they were able to determine that my modem simply needed a firmware update. They pushed it through, and I've been getting the proper speeds ever since (first 50, then 100 when they doubled speeds last year).

So, it may be worth e-mailing and asking them to check for that.


Great info. Thank you so much. I'll be sure to give that a try.
Posted by ArkLaTexTiger
Houston
Member since Nov 2009
2462 posts
Posted on 7/8/15 at 10:51 pm to
I'm paying Comcast for a 50/5 plan in Houston and my wireless speed is consistently over 50/5:



I'm using a Motorola SB6141 / Asus RT-N66U.

Posted by Spock's Eyebrow
Member since May 2012
12300 posts
Posted on 7/8/15 at 10:56 pm to
quote:

It could simply be an issue of an oversubscribed area with too many people sharing a node, and your 4 downstream channels being a bottleneck. However, I'd imagine that at this time of night there'd be less activity.


Four bonded downstream channels are plenty to support 50 Mbps. Like you, I get that at all times of day and night. If the OP hasn't done so already, I'd like to see his status page to be sure of the bonding and signal levels:

https://192.168.100.1/cmSignal.htm

I have an SB6120, so I would guess that would also be correct for his 6121.

quote:

It was not until I e-mailed Cox.Help@cox.com (apparently this email address is handled by higher-tier technicians) that they were able to determine that my modem simply needed a firmware update.


Ah, didn't know about that one. I've gotten good help at dslreports.com. Here's a link to the page listing the authorized Cox personnel that hang out there:

Who are the authorized Cox employees that provide support on this forum?

If you're not getting anywhere with forum messages there or especially phone-line Tech Support, they will answer IMs, and the level of support can be quite impressive.

Posted by ILikeLSUToo
Central, LA
Member since Jan 2008
18018 posts
Posted on 7/8/15 at 11:09 pm to
quote:

Four bonded downstream channels are plenty to support 50 Mbps.


It should be for sure. But I have, on one occasion, observed an issue with 4 bonded channels being a bottleneck during peak times on a 50mbps connection. Obviously it was a heavily oversubscribed area, and I think it's become less of a problem with the availability of U-Verse around here now. Close to half of the SSIDs I can detect from my house are from U-Verse gateways.

quote:

https://192.168.100.1/cmSignal.htm



Same as my SB6141, too.
This post was edited on 7/8/15 at 11:10 pm
Posted by jordan21210
Member since Apr 2009
13382 posts
Posted on 7/8/15 at 11:17 pm to
quote:

Four bonded downstream channels are plenty to support 50 Mbps. Like you, I get that at all times of day and night. If the OP hasn't done so already, I'd like to see his status page to be sure of the bonding and signal levels


Which tab would you like to see? I can print screen that status page...unless that is ill-advised for some reasons I'm unaware of

Thanks for the links
Posted by Spock's Eyebrow
Member since May 2012
12300 posts
Posted on 7/9/15 at 12:04 am to
Just the number of downstream and upstream channels you're bonding, their signal to noise ratios, and power levels. The total correctable/uncorrectable codewords could be relevant. You can google the desired ranges for SNR and power if you don't feel like posting screenshots or whatever, but I don't see any sensitive info on my page. I wouldn't be surprised if LSUToo is right about oversubscription, though upgrading to DOCSIS 3 and channel bonding solved that periodic 10 year old problem for me permanently (to date, anyway ). It really was like a sort of miracle.
Posted by StraightCashHomey21
Aberdeen,NC
Member since Jul 2009
125402 posts
Posted on 7/9/15 at 4:00 am to
quote:

This has to stop...



some people just don't get it
Posted by jordan21210
Member since Apr 2009
13382 posts
Posted on 7/9/15 at 6:27 am to
Problem appears to be solved. I contacted cox.help@cox.com and they replied very quickly. Issue was that my modem was DOCSIS 3.0 but my Cox account had not yet been updated to DOCSIS 3.0 preferred level service code. He updated my account and restarted my modem and I am now seeing 59 mbs wired through the router and 40 mbs over wifi.

Thanks to everyone who chimed in, especially ILikeLSUToo for giving me that email address.
Posted by jordan21210
Member since Apr 2009
13382 posts
Posted on 7/9/15 at 6:29 am to
quote:

Just the number of downstream and upstream channels you're bonding, their signal to noise ratios, and power levels. The total correctable/uncorrectable codewords could be relevant


If you're still interested in seeing this, I can post it after I get home from work today. I'm kind of interested to see what you can find out from looking at it, would love to be a bit more well versed in this area.
Posted by TigerDeBaiter
Member since Dec 2010
10262 posts
Posted on 7/9/15 at 9:44 am to
quote:

This has to stop... Can we just kill the tech board if these topics are never going to get a sticky


Go find another forum to post on if it bothers you that much. Clearly everybody here is below your level of intelligence.
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