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Problem description: My dad and I are Time Warner customers. For the past half a year, we put up with internet that dropped out (modem completely reset itself) after about 10 minutes of sustained >10ish Mbps download speed. We are on a 30Mbps plan. They replaced our modem once, problem persisted. They did it again a couple weeks ago with a newer model, an Arris TG1672. It doesn't completely drop out anymore. Instead without rhyme or reason internet will crawl for about half a minute and pick back up. Its not a gigantic problem, just really annoying. Here's something from the modem status page, I don't know much about networking or what an uncorrectable is but a bit of googling tells me its really high. DCID Freq Power SNR Modulation Octets Correcteds Uncorrectables Downstream 1 8 699.00 MHz -8.90 dBmV 30.88 dB 256QAM 3990401421 10100 0 Downstream 2 1 657.00 MHz -10.80 dBmV 26.61 dB 256QAM 3691142625 383037329 65950219 Downstream 3 2 663.00 MHz -10.50 dBmV 26.84 dB 256QAM 4695150736 398461903 54461735 Downstream 4 3 669.00 MHz -10.50 dBmV 27.17 dB 256QAM 3518845103 337361413 34998936 Downstream 5 4 675.00 MHz -10.80 dBmV 27.07 dB 256QAM 4195814387 423645775 44178791 Downstream 6 5 681.00 MHz -10.60 dBmV 27.97 dB 256QAM 3342025659 42507350 708747 Downstream 7 6 687.00 MHz -10.00 dBmV 28.91 dB 256QAM 3896455749 970934 22 Downstream 8 7 693.00 MHz -9.60 dBmV 30.15 dB 256QAM 4294188934 27353 0 Attempted fixes: What have you tried to do to resolve the problem? Google Time Warner support forums. Recent changes: Have you made any changes to your system/configuration recently that might have caused the problem? Modem change per Time Warner. -- Operating system: Windows 10 x64 System specs: i5 4560, ASRock Z87E ITX, GTX780, Samsung 850 EVO Location: US, Central Ohio I have Googled and read the FAQ: Yes
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Aug 18, 2015 04:45
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| # ? Apr 27, 2024 01:38 |
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Your signal levels look pretty poo poo, but post your Upstream levels so we can be sure (those are what matter). Do you have your modem behind any cable splitters, or unnecessarily long or flat/thin coax cables?
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Aug 18, 2015 16:42
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Won't be home until later tomorrow to test upstreams, but I snapped a quick pic of the splitters we have.
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Aug 22, 2015 05:27
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Unfortunately without knowing what cables are going where that picture doesn't mean much. However, as a general rule cable modems aren't used behind amplifiers such as the one you have pictured. My guess would be that the cable company needs to correct the signal strength coming into the house and your amplifier needs to be removed.
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Aug 22, 2015 06:26
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Upstream UCID Freq Power Channel Type Symbol Rate Modulation Upstream 1 20 37.00 MHz 42.50 dBmV DOCSIS2.0 (ATDMA) 2560 kSym/s 16QAM Upstream 2 19 30.60 MHz 41.75 dBmV DOCSIS2.0 (ATDMA) 5120 kSym/s 16QAM Upstream 3 18 24.20 MHz 41.00 dBmV DOCSIS2.0 (ATDMA) 5120 kSym/s 16QAM Upstream 4 17 19.40 MHz 39.75 dBmV DOCSIS1.x (TDMA) 2560 kSym/s 16QAM
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Aug 25, 2015 19:05
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Your upstream power levels are actually fine, so the problem seems to be with your downstream signal.
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Aug 25, 2015 19:22
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That's still something I'd contact Time Warner about, correct?
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Aug 27, 2015 03:19
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Yeah that's correct, the tech should be able to diagnose and hopefully fix it. I think the basic issue is that you have weak signal that is coming into the house and going to an amplifier, which amplifies the noise along with the signal. Then it goes through some splitters, and you now have a weak but relatively noisy signal. So ideally they fix the signal to your house to be strong enough so you can use a reasonable splitter configuration for your devices without an amplifier.
Alereon fucked around with this message at 04:29 on Aug 27, 2015 |
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Aug 27, 2015 04:27
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| # ? Apr 27, 2024 01:38 |
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That is very helpful, I can explain that to them instead of them saying "its your modem here's a new one". Thanks a ton!
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Aug 27, 2015 05:22
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