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| [AZ] Cox Preferred HSI Tucson Slow Download, Fast Upload Info:
I have been having a problem with slow download speeds for the past month or so. There was a citywide outage back in late November or Early December, and ever since then I have been having this problem.
Once the outage was over, I was still not able to connect (friends who also had Cox had their internet back, but could not find the DNS server). I called support and they had me try a bunch of things, but ultimately (and strangely) switching the patch cable around resolved it (taking the end plugged into the modem, and switching it with the end plugged into the router.)
Modem: Scientific Atlanta 2100
Router: not an issue, I'm troubleshooting with a direct connection to the modem.
Cox Speed Tier: Preferred (18Mbps down, 4Mbps up advertised)
Connection:wired; speeds through router are the same, it is not a router issue
Splitters: one splitter (wall to splitter, to cable box and modem)
TV or Phone Affected:Do not have phone; cable is not affected
Speed as tested:
SpeedTest.net reports between 0.2-2.6Mbps down and 6-9Mbps up during various times throughout the day.
test.lvcm.com Achieved download speed: 1.48Mbps
Upload Speed 2.44 Mbps (12:30am 1-16-2012)
Tweaks:I'm on Windows 7, I figured the TCP stack is same as Vista. If not, please let me know.
It sounds like the same issue this user is having: Cox Fast Download, Slow Upload | |
Reviews:
 ·Cox HSI
| post your modem signal levels if you do not know how to do this
either go to this page
»Scientific Atlanta hardware »Webstar DPX-2100
or this one for the depending on the model
»Scientific Atlanta hardware »Webstar DPC-2100 | |
| reply to MrSmith
I have this same issue, I noticed a drastic slowdown as of Sunday 1-15 evening, continuing through today. Slow 1-3mbit download speed, high 7-9mbit upload speed. Status from dpc2100 modem:
Hardware Version
2.0
Software Version
dpc2100R2-v2.0.2r1256-110419as-COX
Receive Power Level
9.5 dBmV
Signal to Noise Ratio
38.2 dB
Transmit Power Level
43.2 dBmV
Cable Modem Status
Operational | |
| reply to MrSmith
Okay so I had a technician come out yesterday (yes on MLK day, much appreciated) and found that the coax line running to my house had some interference on it, so he replaced it. Before he left I ran a couple speedtests and got between 5-8Mbps download speed.
As soon as he left I tested again and got 2Mbps 
Get this: this morning I tested and got 20Mbps down!
Right now it is around 15 (which is what it should always be considering it is what they advertise, but I digress).
So I am now ABLE to achieve the promised speeds but there is a LOT of fluctuation (yes I understand cable internet has its slow moments when many people are accessing it, but this is not a gradual fluctuation).
I will get 22Mbps one minute, and 8Mbps 5 minutes later.
Here are my signal levels
Name
DPC2100R2
Hardware Version
2.1
Software Version
dpc2100R2-v2.0.2r1256-110419as-COX
Receive Power Level
0.5 dBmV
Signal to Noise Ratio
37.1 dB
Transmit Power Level
53.7 dBmV
Cable Modem Status
Operational | |
Reviews:
·Cox HSI
| Well your upstream has jump from 43db to 53db, that's an issue. Your pushing max power level on upstream, and you want to keep that under 50db. Also I think the solution to your speed issue, is gonna be buying a new modem. So it might be time for you to upgrade to a D3 modem, the bad news is they cost $80-100. If you decide to upgrade to a D3 modem, I suggest visiting your local cox store. Because they sell there D3 modems for around $80, which is on the cheap end. Also most likely your local cox store is carrying the Cisco DPC3010 D3 modem, which can bond up to 8 downstream, and 4 upstream channels. The modem you have now is a single downstream, and single upstream. D3 is the future of cable internet, and with a D3 modem, you should be set for the next 3-5 year as far as needing to upgrade your modem.
So I simply suggest thinking about upgrading to a D3 modem, if you have the money to do so. Since speed slow downs are a lot less likely to happen during peak usage hours with a D3 modem. | |
| reply to MrSmith
Yes, the tech that came out recommended I buy a D3 modem, but I do not see why I should have to pay over $100 for a modem that will ensure I get the service that Cox is contractually obligated to provide.
This should be their responsibility. I already pay them an arm and a leg for very spotty service. Instead of recommending something for me to buy, they should just replace it.
And if I do buy it, what am I supposed to do with the old one? Just throw it away?
And what happens if I buy the D3 modem and am still not able to get the speeds they claim?
I hate to rant, but I feel like I am being taken for a ride with these guys. If the service is not adequate, they should fix it. That is how a service company works. The consumers should not have to fix technical problems themselves.
I only have two options though, and I don't know of any competitors that don't have a terrible reputation.
I can either pay $100+ for the device that might make my speeds less erratic, and continue paying one hundred thirty dollars per month (yes I pay THAT MUCH and they still can't give me decent service; I have cable + HSI package)
OR
I can switch to another, cheaper, service, save bundles of money, and hope I never have to deal with their customer service people.
What are people's suggestions? | |
| reply to MrSmith
@Lilstone
My upstream did not jump from 43 to 53. Someone else posted their signal levels before mine.
Thanks for your help | |
Reviews:
·Cox HSI
| said by MrSmith :@Lilstone
My upstream did not jump from 43 to 53. Someone else posted their signal levels before mine.
Thanks for your help
Ok my bad about that, well your upstream power level is still way to high and needs to be lowered. I know paying for another modem sucks, but if cable internet is gonna be your choice going forward. Save yourself the headache, and hours of bs talking to tech and such, buy a D3 modem. I recommend getting one from the local cox store, because the price most likely will be cheaper. Plus lets say that modem doesn't help your speed issue, which I think it will in your case, you can always take it back to the cox store within a 30 day period and get a refund.
Also your right about it being your ISP job to correct issue's that are not home side. The truth to this is they are working on things, the reason for cable internet providers are moving to D3. Yes cox could fix your issue, but to fix an issue like yours for older modems they will no longer support in the near future doesn't make sense for them. Because we are talking about thousands of dollars to do a node split, plus months of waiting for permits and such for them to even do the job. Compared to you spending $80-100 on a new modem that your gonna have to upgrade to anyways in near future. Cox is providing the support to newer and better service for us, but its our job to upgrade are modem equipment when it comes to the internet part of things.
Anyways I am in no way trying to force you to buying a new modem, just giving you advice on your problem, and the best way to resolve the problem. I have personally had to deal with speed issue's in the past before D3 was an option. I went threw months of speed issue's and such before anything was done. So I know how these kind of things work. So its worth thinking about, and like I said I am sure cox will provide a refund if the modem doesn't help, plus then you will have the right to really complain. Because you will be using the latest technology they are using, and it will be there job to fix whatever is the issue. | |
| reply to MrSmith
Okay, well I guess the D3 modem is worth a try.
I am a bit confused though: does the modem no longer work properly because they upgraded their network? It seems that if this is the case, it IS their responsibility to upgrade all users to equipment that can handle the new infrastructure.
Yes it would cost them thousands of dollars, but customer retention should be a big enough concern for them to make a moderate investment.
If this is not the case, then why would the modem suddenly start acting erratically and never work properly again? Could there be something wrong with the modem itself? If they have given me a faulty modem, then it is definitely their responsibility to provide me with a new one.
I will most likely purchase the D3 modem online. Cox does not deserve any more of my money, and I would like to know that I can return it if it does not work. Knowing Cox, they probably will not let me. 
So were you experiencing similar problems to mine before upgrading to the D3? Did the D3 make speeds more stable? | |
| reply to MrSmith
Ok, just ran a speedtest and got an amazingly high result again.
It is 9:24 AM and I got:
23.54 down
7.45 up
Yesterday morning I also got speeds >20, maybe because no one is on their internet right now. For most of the rest of the day I get about 1Mbps or less. I want so badly to have these speeds, if not all the time, then at least 75-80% of the day, but before bed last night, around 11:30 I ran speedtest and got(ran it multiple times):
0.2 down
4.16 up
0.6 down
1.08 up
There is clearly something wrong here. My modem is capable of speeds higher than what I need, but whenever I am using my internet, it seems to be 1Mbps or lower.
Perhaps they simply have to many households sharing a line.
The dedicated line of DSL sounds more and more tempting every day.
Here are my signal levels (9:24am; right after achieving the high speed):
DPC2100R2
Hardware Version
2.1
Software Version
dpc2100R2-v2.0.2r1256-110419as-COX
Receive Power Level
1.5 dBmV
Signal to Noise Ratio
36.9 dB
Transmit Power Level
51.2 dBmV
Cable Modem Status
Operational | |
Reviews:
·Cox HSI
| Yes the problem is related to the downstream channel your on getting to busy during peak usage periods. Which causes your speeds to go to crap. The thing is with the D3 modem, you will be bonding 4, 6, or maybe even 8 downstream channels. So the speed issue shouldn't no longer be an issue. Like I said before, if you can somehow manage getting a new D3 modem. I really think it will be worth your while, and this issue will be a thing of the past.
Anyways you could also register on here, and send CoxTech1  a PM with your modem's mac#. So he can look over things to see if there is any other cause for concern, but I do know he will point out your upstream power level being on the high side, and a tech visit needed to lower that. | |
| I'm with you MrSmith. My speed is down around 4mbit downstream now, 9mbit up. 5 times slower than what I am paying for. This slowdown happened for several people recently, and undoubtedly many more not posting here, and now we are suggested to purchase a new Modem that Cox should be providing. The provider is accountable to maintain their contractual obligation, it is not the burden of the customer.
We have a tech call in, if they are not able to fix this issue, then I will move to Century Link. | |
Reviews:
·Cox HSI
| said by Jiggawatts :I'm with you MrSmith. My speed is down around 4mbit downstream now, 9mbit up. 5 times slower than what I am paying for. This slowdown happened for several people recently, and undoubtedly many more not posting here, and now we are suggested to purchase a new Modem that Cox should be providing. The provider is accountable to maintain their contractual obligation, it is not the burden of the customer.
We have a tech call in, if they are not able to fix this issue, then I will move to Century Link.
Since when is cox to supply you a modem? Cox will supply you a modem if you have there phone service. But other then that you have always had to either buy your own modem, or rent one from cox. Which cox no longer does that, so if you don't have there phone service. Its up to you to provide the modem for your internet service threw them. | |
| said by lilstone87:Since when is cox to supply you a modem? Cox will supply you a modem if you have there phone service. But other then that you have always had to either buy your own modem, or rent one from cox. Which cox no longer does that, so if you don't have there phone service. Its up to you to provide the modem for your internet service threw them.
Yes, you may be right. I have been with Cox for about 3 years, so I do not remember whether or not I paid for the modem, but I might have. I don't really want to have to go through any more trouble (especially the trouble of switching to another provider). And I don't believe Comcast is available in my area (otherwise I would have gone with them in the first place). I might just buy the D3 if you are confident that it will help me.
Which one is the best bang for my buck? What do most people prefer? | | |
|
Reviews:
·Cox HSI
| said by MrSmith :said by lilstone87:Since when is cox to supply you a modem? Cox will supply you a modem if you have there phone service. But other then that you have always had to either buy your own modem, or rent one from cox. Which cox no longer does that, so if you don't have there phone service. Its up to you to provide the modem for your internet service threw them.
Yes, you may be right. I have been with Cox for about 3 years, so I do not remember whether or not I paid for the modem, but I might have. I don't really want to have to go through any more trouble (especially the trouble of switching to another provider). And I don't believe Comcast is available in my area (otherwise I would have gone with them in the first place). I might just buy the D3 if you are confident that it will help me. Which one is the best bang for my buck? What do most people prefer? I recommend going to your local cox store, and see if they have either the Cisco DPC3010, or the Motorola 6180. Both them modems are 8x4 D3 modems. Which means they can bond up to 8 downstream channels, and 4 upstream channels. So you will have a more future proof modem, and shouldn't need to upgrade for a long period. Also as I told you before getting one from cox will most likely save you a few dollars, and if you have any problem with the modem. Just bring it back to them.
As for the comcast comment, cox and comcast are a lot alike. Both are cable companys, and both have went to D3 for internet service. So you would most likely be in this same spot regarding the modem issue, since the truth is all cable companys moving to D3. Will be pushing there customers to move to a D3 modem sooner then later since the cable company has control of when they stop supporting older modems. As CoxTech1 said as far as he knows no cox market even carrys anything besides D3 modems in there cox stores anymore. | |
| reply to MrSmith
Actually, I remember quite clearly that I never paid for the modem-- maybe it was some limited offer. I know for sure that Cox service has degraded dramatically while my equipment has remained fully functional. It's not about money, it's about service. Looking forward to what the competition will provide (40up/20down will be a nice change). | |
Reviews:
·Cox HSI
| said by Jiggawatts :Actually, I remember quite clearly that I never paid for the modem-- maybe it was some limited offer. I know for sure that Cox service has degraded dramatically while my equipment has remained fully functional. It's not about money, it's about service. Looking forward to what the competition will provide (40up/20down will be a nice change).
Well it must of been some kind of offer when you got service. Cox only provides a modem if you have there phone service, which is a eMTA modem that can provide both phone and internet service. So no phone service means its your job to provide a modem for internet service. As for competition, good luck with that. Better hope there is some kind of fiber connection offered in your area. Because at least 95% of places, only has choice of cable internet or DSL, or FFTH, and DSL. Then a very few have option of both Cable or FTTH internet. So when it comes to competition for internet, there isn't much of an option for most people. | |
| That's really the problem, no competition in my area, or this country in general. It's either Cox or DSL for anything high-speed. Having been to Scandinavia, you really feel what you are missing in terms of fast, plentiful and inexpensive internet connections.
This morning, I am getting 22mbit down, 9mbit up from Cox: 20 times faster down than 12 hours ago. :| My receive power level seems to have shot up as well:
Software Version
dpc2100R2-v2.0.2r1256-110419as-COX
Receive Power Level
10.6 dBmV
Signal to Noise Ratio
38.2 dB
Transmit Power Level
43.2 dBmV
Cable Modem Status
Operational | |
Reviews:
·Cox HSI
| Well cable internet speeds aren't that bad, they just suffer on the upload side of things, which upstream channel bonding will help out once that is put into place. The biggest thing is you gotta stay up to date with your equipment, and that means using a D3 modem with cox's internet. Since its the new way to keep your speed steady even during peak usage hours, when everyone in your area is using the internet. So Jiggawatts, Just like I told MrSmith, if cox is gonna be your internet provider of the future. You better start thinking of upgrading your modem, when you have the funds to do so.
As of now D3 modems are recommended to be used with cox'x internet. But sooner then later it will be required to use a D3 modem with cox's internet service. Like I said before I am not on here to push everyone to buy D3 modems, I rather be honest with everyone though, and often that means telling people on here. That there modems are becoming outdated, and need to be replaced with a newer modem to have better quality service. | |
| reply to Jiggawatts
said by Jiggawatts :This morning, I am getting 22mbit down, 9mbit up from Cox: 20 times faster down than 12 hours ago. :| My receive power level seems to have shot up as well: I find this very interesting because I tend to get speeds of ~20Mbps down in the morning, and slowly throughout the day it declines. It is almost 1pm, and I am hovering around ~9Mbps down.
I wonder if this is simply because more people get online as the day progresses, with the maximum number of people on around midnight. I guess since it is residential, this is possible, but it seems kind of strange. There must be some other reason.
And I think I will stick to buying my modem online. I'm not going to give Cox MORE money because they failed me. It just doesnt seem right to me. They could just make current modems incompatible and force everyone to buy their merchandise, therefore increasing their profits... (and I'm not entirely convinced that this is not what they are doing)
In addition to that, I don't live anywhere near a Cox store.
I'm going to be really pissed if I buy it and my speeds don't increase though!!! | |
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