New Contributor
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12 Messages
Cox Upload Speed Issue
Hello I have been trying to get my upload speeds looked at for the past couple of weeks. I have had multiple techs come out and everyone is saying everything is in spec. No matter what the service, or where I am sending the file I am only able to upload at around 7/10Mbps. The plan I am paying for supports up to 30. I had no issues up until about a month or two ago when the speeds drastically lowered. I can try to download/stream a file from my computer remotely from another cox customer in my area, same thing just maxes out at 7Mbps.
I have already had 4 techs come out and look at the house and the wiring, the modem has been replaced. At this point I don't know what to do because it is nothing on my end I can fix. The cox speed test for my region maxes out the connection but is literally the only site that says those speeds. I am not able to replicate those speeds from the cox speedtest on any other service, but if I choose any other cox region in the speed test it reflects the speeds I am experiencing. I am at my wits end and do not wish to lower/cancel my service, but I don't know where else to go from here. We have eliminated that there are no issues with the wiring in my house or the modem/devices connected to it.
The last rep I spoke with at Cox told me my options were to cancel my service or lower my plan. He also said that I needed a higher spec modem or modem/router combo for my package and my current modem wouldn't support it due to the number of channels(I know this isn't true and the modems I had were rated well above the plan I had). I have a sb6183 and bought a sb6190 to troubleshoot the issue. I have had the sb6183 since I had the service installed and it only recently started having issues. The issues followed to the new modem. Anyone else have any similar experiences?
Tecknowhelp
Valued Contributor II
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2.8K Messages
9 years ago
Are you only getting 7Mbps direct to the SB6190?
Also, what area are you in? 30Mbps upload is only available in a few select areas.
Last, what are the modems signal levels? You can find them on 192.168.100.1
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rlobbins
New Contributor
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12 Messages
9 years ago
Here are the current signal levels on my modem with a -9db attentuator attached by the tech. We swapped the sb6183 back onto my account today. It was purchased to rule out the modem, speeds were the same across both devices. I live in an area with 300/30 available, and yes I can only get 7Mbps upload out regardless of where I am sending the file. We have ruled out any issues with the wiring in my house/network devices in my house.
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Tecknowhelp
Valued Contributor II
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2.8K Messages
9 years ago
Could you explain what you mean by that? Are you judging your speed by trying to transfer a file? If so, what kind of file and to where? Have you tried a normal speed test?
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rlobbins
New Contributor
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12 Messages
9 years ago
Any where, I can go to my neighbors house who has cox and download a file directly from my computer, which would be using the upload speed. Maxes out at 800kb/s, same for mega.co.nz, dropbox, my work sites, google drive, any where I can not upload faster than 7-8Mbps. So unless every single service has an issue with cox but works fine on a 20Mbps upload speed on centurylink it can't be me.
Speedtests to the region test on cox's site dont reflect any of the speeds I am actually getting. If I change to a different cox region it reflects the speeds I am actually getting through you guys.
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Tecknowhelp
Valued Contributor II
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2.8K Messages
9 years ago
I don't know how you would download a file direct from your computer from your neighbors house. What are you using to transfer the file? FTP? HTTP? I don't understand you are testing.
" If I change to a different cox region it reflects the speeds I am actually getting through you guys."
Internet slows down the further the server is. If you are having problems with performance to a certain server, try a tracert to the server and post the results.
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rlobbins
New Contributor
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12 Messages
9 years ago
FTP, HTTPS, I can watch the traffic on my router/firewall, I am running pfsense with a dual wan configuration(different people in the house want different internet, but it helps me troubleshoot when needed). I am not a beginner, I understand tech and I understand networks. I wouldn't be posting if it was inside my control to fix it.
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Tecknowhelp
Valued Contributor II
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2.8K Messages
9 years ago
Ok, nevermind. I think I will let someone else take this one. Too rich for my blood.
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rlobbins
New Contributor
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12 Messages
9 years ago
Sorry, thanks for taking the time to take a look. I appreciate it.
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Omoeba
New Contributor
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70 Messages
9 years ago
You got extremely low power on the upload channels, ideally the level is 45-48, anything from 42-50 is okay, anything below 40 WILL NOT WORK, you should give the values to cox and let them diagnose the issue.
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Omoeba
New Contributor
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70 Messages
9 years ago
It is probably a cable problem. Take a look at the cables. If there are RG-59 on the cable, immediately ask them to change it to RG-6 or higher
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grymwulf
Contributor II
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319 Messages
9 years ago
*sigh*
Ok I'll take a bite - you've got pfSense and dual wan setup - so you can not really tell us what the speed is for your single connection to Cox. And since, as you say, you are technically inclined, you would know the standard troubleshooting for these types of speed issues? Especially the normal course of action any time you have a dual-wan or fail-over setup right?
First, connect directly to the feed that is considered to be at issue. Then test the speeds directly connected, using industry standard tools (iperf/jperf) or standard 3rd party sites such as (use more than 1 as a second opinion due to testing methodology differences):
http://fast.com (DL speed only)
http://speed.googlefiber.net
http://www.speedtest.net
http://www.dslreports.com/speedtest
If the problem does not exist there, move your testing apparatus 1 node/hop further in and test there; in this case this would be with the pfSense box on a single-wan setup, make sure you save your config to revert as necessary. Repeat ad nauseam until you discover which 'hop' is causing the slow-down.
Now here is the rub, don't test just using FTP or some other spec, especially if you are accessing a USB network drive or other such devices. You want to test memory <-> memory to eliminate any other possible issues (USB disk access slow-downs, application overhead, etc)
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rlobbins
New Contributor
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12 Messages
9 years ago
I can tell you what my exact speeds are for cox. I run my setup with an active/standby setup, no active load balancing. So unless cox goes down centurylink isn't touched. Regardless of where I am trying to send the file or speed test my cox upload speeds are too low. There are no slow downs in my network that would hold up the upload speeds. We narrowed down and ruled out cables, we connected the modem directly to the demarc and it had the same signal issues as when I was connected inside. Cables for the house have been ruled out, it is more or less a throughput issue on cox's side. The installers that came out to my house said they hate being called out to the area I live in due to the amount of signal issues they have.
Switch to centurylink(cox shut off), speed test 40/20, exactly what the plan is. Uploading a file at 2.2MB/s, download a file from my pc ip from a computer on cox remotely 2.2MB/s.
Switch to cox(centurylink disabled), speed test 300/10-20 depending on the speed test server. Upload a file to any service, or try to download it directly from the pc ip, maxes out at 700-800kb/s.
Going through cox as the ISP my upload speeds are no where near 30.
Edit: Cox tech just left, agreed and said there are speed issues with my connection and he will start escalations to see what is causing the slow downs.
Thanks everyone, I will update if things get better.
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