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Re: CM1000 modem comcast gigabit - slow speed
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CM1000 modem comcast gigabit - slow speed
Got comcast gigabit service. comcast replaced outside and inside lines and tested the signal strength which they told me was good - in fact in the sweet spot. I haven't been able to get more than 375 mbps using various speed tests with an ethernet connection to a 1 gigabit ethernet port verified as connecting to the cm1000 at 1 gbps. can someone help me understand if the modem's connection from comcast should be able to handle maximum gigabit service speed? Thanks.
here is what the modem is reporting:
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This field below allows you to modify the frequency the cable modem start with its scan during initialization and registration. Enter the new start frequency and restart the cable modem for it to take effect. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Current System Time: Mon Aug 28 14:26:59 2017 |
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Re: CM1000 modem comcast gigabit - slow speed
Signal levels ok (although DS is bit hot on lower channels)
1. How are you testing and with which website?
2. where are you located?
3. What is your CMTS MAC?
4. did you test directly behind CM1000?
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Re: CM1000 modem comcast gigabit - slow speed
1. CM1000 cat6 cable into 1 gbps ethernet port using speedtest.xfinity.com and beta.speedtest.net via chrome on windows 10
2. Jacksonville FL
3. Is CM MAC the same thing? If so, is it ok to make it public?
4. Yes
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Re: CM1000 modem comcast gigabit - slow speed
CMTS-MAC=00:01:5c:72:84:53
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Re: CM1000 modem comcast gigabit - slow speed
got it. you are behind Arris E6K CMTS.
can you please PM me your CM MAC? I would like to check your config file.
did you make sure you are on gigabit boot file?
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Re: CM1000 modem comcast gigabit - slow speed
Your problem is the exact same one as mine. I am hoping someone will be able to figure it out so I don't have to return the modem. If you do figure out how to solve the problem, can you let me know or make sure you post the solution?? I have spent so much time on this and am so frustrated. THANKS!!!
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Re: CM1000 modem comcast gigabit - slow speed
please PM me with above answers as other user.
the OP's problem is not resolved yet but we are looking into it.
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Re: CM1000 modem comcast gigabit - slow speed
Just installed today and I am also getting speeds from 320 to 500 on Xfinity Gig Sevrvices. With the Xfinity Modem I was getting 500 to 900. Has anyone got a solution yet?
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Re: CM1000 modem comcast gigabit - slow speed
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Re: CM1000 modem comcast gigabit - slow speed
Was a resolution to this issue ever found? I have the EXACT same problem with Xfinity and the CM1000. I am starting to think it;s the modem and am likely to return it and instead just use the Xfinity supplied modem (which is NOT what I want to do)
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Re: CM1000 modem comcast gigabit - slow speed
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Re: CM1000 modem comcast gigabit - slow speed
The best I've been able to get is 470 mbs at firmware version V3.01.04. Just curious what you were getting with the Netgear and Arris?
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Re: CM1000 modem comcast gigabit - slow speed
Looking at https://mydeviceinfo.xfinity.com/customerinfo I find under my 'download speed' 789.2 mbps shows as 'My plan speed' not 1000 mbps. Not sure if this points to some issue.
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Re: CM1000 modem comcast gigabit - slow speed
The best speed I reached with the CM1000 was 450, and with the ARRIS it was 500. I had one Comcast tech tell me that Comact's servers would only support around 450 and that was the best I could expect. I didn't buy that. Why sell gigabit service if you never break 500? However, when the second tech came out and hooked up the Comcast modem, I consistently got speeds of 800-940. I hate using Comcast's modem, but for now, its the only way I can get the speeds I am paying for.
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Re: CM1000 modem comcast gigabit - slow speed
Yeah, mine shows 986.50 as "plan speed" but I'm not evern getting that.
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Re: CM1000 modem comcast gigabit - slow speed
Im having the same problem. I spent 2 hours on the phone with some moron saying its my modem thats the problem or its my wiring and i know for a fact hes wrong. All wires in my home are cat6a and the cox cables are brand new. I had full 900ish mega down and 40 up for a bit but then it started to slow. I still get full 40 up but my down speed was about 100-300 on so many sites. literaly every site said the same thing, exept comcasts own site which said i was getting 900 down and 40 up. The guy on the phone insists that my modem is broken and I need to RMA it with Netgear. Well to this day (all most 2 months later) its still slow and netgear said the modem was perfect. So the only thing that could be the problem is comcast or the wires in the street( also comcast responsabiliy)
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Re: CM1000 modem comcast gigabit - slow speed
Its no doubt comcast cause they want you to use their modem and pay per month
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Re: CM1000 modem comcast gigabit - slow speed
I've been going through the same thing. I had comast tell me that i needed a tech to come out. Tech came out, tested lines, couldn't find a problem. He did nothing and left with my internet still at 200Mbps even though I've been paying for Gigabit. He called a field lineman out to check the line coming to the property. That guy came same day and ran tests. Told me all is good, no noise in line - nothing he could do. He suggested I called to make sure provisioning was correct. I'd done this already but now that I'd had 2 techs come tell me the hardware was fine, I made the call. I got to Tech 2 support (wirelesss gateway team) and was told they could see massive packet loss and the gentleman didn't understand how the techs didn't see the noise. So he scheduled another tech for the following morning. New tech comes and tells me the guys on the phone don't know what they're talking about and all his tests were fine. Told me they just say packet loss to make customers feel good and really they can't tell that from the phone, nor noise in the lines. He did, however replace all the coax cabling and schedule a team to run a new underground line from the street to the house, setting up a temporary above ground run for now with flags marking the wire. Guess what! Still get max of 200Mbps. If I play games on my PC and stream to Twitch, internet slows to a crawl. Under 1Mbps down and up. It's repeatable and consistently awful. I bought a gigabit ethernet switch but it wont power my Eero pro router and computer via direct connection. Something about needing multiple public IP addresses. Don't think it would work anyways since direct Cat6 connection from the CM1000 to my PC does the same thing. 200Mbps. I get about 700Mpbs for 5 minutes after i restart, sometimes, but it quickly falls to 200Mbps and hangs there. As soon as I turn a game a twitch stream on, im in unusable territory. Do I just throw in the white flag and get a Xfinity gateway?
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Re: CM1000 modem comcast gigabit - slow speed
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Re: CM1000 modem comcast gigabit - slow speed
Can you link the amazon NIC here? I'd like to look. I don't know what it is. When I get home i will post my levels - at work currently. For $50 i would be willing to give it a shot. Did you ever have problems with the speed dropping to unusable speeds when streaming video or doing some bandwidth intensive activity? Other than that i could live with the non-gig speeds, but i make money streaming games and its cutting into a (fine, very small) income stream of mine.
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Re: CM1000 modem comcast gigabit - slow speed
Note it's price has gone up. Must have been a sale. Also I have yet to have any issues with it. And I know cause my Twitter bot has not been sending tweets when my average speed across 5 nearest servers is less than 700mbps. But again it might be the perfect fix for you and you may need to continue working with them. If you need a Twitter bot to keep them in line that always helps haha.
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Re: CM1000 modem comcast gigabit - slow speed
Unfortunately I am using a Surface Book 2 (laptop). I wonder if something like this might help. The laptop is plugged into a Surface Dock with 10/100/1000 Ethernet. I guess it's possible that the surface dock's Ethernet is the problem...For $15 might be worth a shot.
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Re: CM1000 modem comcast gigabit - slow speed
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Re: CM1000 modem comcast gigabit - slow speed
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