Forum Discussion

imgreenonline's avatar
imgreenonline
Joining in
2 years ago

Not getting 1gig speeds, only 300mbps, when VM guarentees 552mbps

We upgraded to 1Gig the other week, but it's never been quite reliable, going down a few times in the few weeks we've had it. Now we are only reaching top speeds of 400mbps when VM guarantees 552mpbs.

Here's the diag info, I wasn't able to run the SamKnows test from any of my devices, plugged directly into my Hub 5 or not.

3.0 Downstream channels

Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID
1219000000936QAM 25611
21390000007.836QAM 2561
31470000007.936QAM 2562
41550000007.936QAM 2563
5163000000837QAM 2564
6171000000836QAM 2565
71790000008.136QAM 2566
81870000008.337QAM 2567
91950000008.637QAM 2568
102030000008.736QAM 2569
112110000008.937QAM 25610
122270000008.937QAM 25612
132350000008.837QAM 25613
142430000008.836QAM 25614
152510000008.736QAM 25615
162590000008.836QAM 25616
172670000008.937QAM 25617
182750000008.936QAM 25618
192830000008.937QAM 25619
202910000008.936QAM 25620
212990000008.836QAM 25621
223070000008.837QAM 25622
233150000008.736QAM 25623
243230000008.736QAM 25624
253310000008.637QAM 25625
263390000008.836QAM 25626
273470000008.836QAM 25627
283550000008.937QAM 25628
293630000009.136QAM 25629
303710000009.136QAM 25630
313790000009.236QAM 25631

3.0 Downstream channels

Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors
1Locked3600
2Locked3600
3Locked3600
4Locked3600
5Locked3700
6Locked3600
7Locked3600
8Locked3700
9Locked3700
10Locked3600
11Locked3700
12Locked3700
13Locked3700
14Locked3600
15Locked3600
16Locked3600
17Locked3700
18Locked3600
19Locked3700
20Locked3600
21Locked3600
22Locked3700
23Locked3600
24Locked3600
25Locked3700
26Locked3600
27Locked3600
28Locked3700
29Locked3600
30Locked3600
31Locked3600

3.1 Downstream channels

Channel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz)
33944K1840QAM 40961108

3.1 Downstream channels

Channel ID Locked Status RxMER Data (dB) PLC Power (dBmV) Corrected errors (Active Profile) Uncorrectable errors (Active Profile)
33Locked4113.6288715720

 

 

Time Priority Description
01-07-2024 22:18:49noticeREGISTRATION COMPLETE - Waiting for Operational status
01-07-2024 22:18:41noticeDS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
01-07-2024 22:18:34warningDHCP WARNING - Non-critical field invalid in response ;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
01-07-2024 22:18:32noticeHonoring MDD; IP provisioning mode = IPv4
01-07-2024 22:18:22criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
01-07-2024 22:18:17criticalSYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
01-07-2024 22:18:16criticalCable Modem Reboot because of - HW or Power-On Reset
01-07-2024 12:33:49criticalNo Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
01-07-2024 12:33:43criticalSYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;

3 Replies

  • Akua_A's avatar
    Akua_A
    Icon for Forum Team rankForum Team
    2 years ago

    Hi imgreenonline 

    Welcome to our community forums and thank you for your first post.

    Sorry to hear you have been experiencing service issues since your speed upgrade. We can understand your frustration and want to best help. We are unable to run tests to determine the root issue. Can you let us know if your router is in modem mode? If so, can you switch to router mode briefly so we can run some tests?

    Thanks,

    • imgreenonline's avatar
      imgreenonline
      Joining in
      2 years ago

      Seems like modem mode is on, i'll turn it off tomorrow when i get a chance.

      • Megan_L's avatar
        Megan_L
        Forum Team (Retired)
        2 years ago

        Thanks Imgreenonline,

        Please let us know once you've turned off Modem Mode and we can take another look at your services and see what's going on 🙂

        Thanks,

        Meg