NETGEAR is aware of a growing number of phone and online scams. To learn how to stay safe click here.

Forum Discussion

grnmymac's avatar
Jan 08, 2024

Slow Upload Speeds Question

So I am on Xfinity's 1200Mbps download and 200Mbps Upload and I just installed my CAX80 today. When connected to Ethernet, I get close to 1Gbps, but my upload is stuck around 30 to 40Mbps. When I had the Xfinity Router, it would regularly top out at the 200Mbps. 

 

I have turned off the OFDMA and that helped my download speeds. Is there something I am missing in regards to the upload speeds on Wifi and Ethernet? 

 

Thanks

6 Replies

  • FURRYe38's avatar
    FURRYe38
    Guru - Experienced User

    What Firmware version is currently loaded?
    Please post a copy and paste of the modems connection status and event log page.
    https://kb.netgear.com/30007/How-do-I-obtain-the-cable-connection-information-from-a-NETGEAR-cable-modem-modem-router
    https://kb.netgear.com/30008/How-do-I-view-or-clear-the-event-logs-on-my-NETGEAR-cable-modem-or-modem-router

     

    What ethernet devices are you using? Brand and model?

    What speed test site are you using? 

     

    What channel configurations are currently set on the router?  

    Is Smart Connect, MIMO and Beamforming options enabled on the modem? 

    • Ethernet Devices:

      Netgear 5-Port Multi-Gigabit Ethernet Unmanaged Network Switch (MS305)

      Cat 6 Cables (Under 3 Feet)

       

      Speed Test Site:

      speedtest.net

       

      Channel Configs:

      2.4Ghz: Auto

      5Ghz: Channel 36

       

      Smart Connect: Off

      MIMO: On

      Beamforming: On

      OFDMA: Off

      Air Time Fairness: Off

       

      Here is the Modem Status:

      Cable Diagnostic

      Status: Good

      Action: Your setup looks fine. If you are still experience an internet issue, the Netgear Cable Knowledge Base can provide additional troubleshooting info.

      Internet Access: Good

      Downstream Status: Good

      Downstream Power Level: Good

      Downstream SNR: Good

      Upstream Status: Good

      Upstream Power Level: Good


      Current time: Mon Jan 08 13:53:38 2024

      Startup Procedure
      Acquire Downstream Channel: 435 MHz Locked
      Connectivity State: OK Operational
      Boot State: OK Operational
      Security: Enabled BPI+


      Downstream Bonded Channels
      Channel LockedStatus Modulation ChannelID Frequency Power SNR Correctables Uncorrectables
      1 Locked 256 QAM 4 435000000 Hz -1.1 dBmV 46 dB 0 0
      2 Locked 256 QAM 1 417000000 Hz -1 dBmV 46.3 dB 0 0
      3 Locked 256 QAM 2 423000000 Hz -1 dBmV 46.2 dB 0 0
      4 Locked 256 QAM 3 429000000 Hz -1.1 dBmV 46.1 dB 0 0
      5 Locked 256 QAM 5 441000000 Hz -1.3 dBmV 46 dB 0 0
      6 Locked 256 QAM 6 447000000 Hz -1.3 dBmV 45.9 dB 0 0
      7 Locked 256 QAM 7 453000000 Hz -1.3 dBmV 45.8 dB 0 0
      8 Locked 256 QAM 8 459000000 Hz -1.6 dBmV 45.7 dB 0 0
      9 Locked 256 QAM 9 465000000 Hz -1.5 dBmV 45.8 dB 0 0
      10 Locked 256 QAM 10 471000000 Hz -1.6 dBmV 45.7 dB 0 0
      11 Locked 256 QAM 11 477000000 Hz -1.7 dBmV 45.6 dB 0 0
      12 Locked 256 QAM 12 483000000 Hz -1.8 dBmV 45.5 dB 0 0
      13 Locked 256 QAM 13 489000000 Hz -1.7 dBmV 45.5 dB 0 0
      14 Locked 256 QAM 14 495000000 Hz -1.7 dBmV 45.6 dB 0 0
      15 Locked 256 QAM 15 501000000 Hz -1.7 dBmV 45.5 dB 0 0
      16 Locked 256 QAM 16 507000000 Hz -1.7 dBmV 45.5 dB 0 0
      17 Locked 256 QAM 17 519000000 Hz -1.6 dBmV 45.5 dB 0 0
      18 Locked 256 QAM 18 525000000 Hz -1.7 dBmV 45.5 dB 0 0
      19 Locked 256 QAM 19 531000000 Hz -1.9 dBmV 45.4 dB 0 0
      20 Locked 256 QAM 20 537000000 Hz -1.9 dBmV 45.2 dB 0 0
      21 Locked 256 QAM 21 543000000 Hz -2.2 dBmV 45.1 dB 0 0
      22 Locked 256 QAM 22 549000000 Hz -2.3 dBmV 45 dB 0 0
      23 Locked 256 QAM 23 555000000 Hz -2.4 dBmV 44.9 dB 0 0
      24 Locked 256 QAM 24 561000000 Hz -2.4 dBmV 44.9 dB 0 0
      25 Locked 256 QAM 25 567000000 Hz -2.4 dBmV 44.9 dB 0 0
      26 Locked 256 QAM 26 573000000 Hz -2.3 dBmV 44.9 dB 0 0
      27 Locked 256 QAM 27 579000000 Hz -2.4 dBmV 44.8 dB 0 0
      28 Locked 256 QAM 28 585000000 Hz -2.3 dBmV 44.8 dB 0 0
      29 Locked 256 QAM 29 591000000 Hz -2.3 dBmV 44.8 dB 0 0
      30 Locked 256 QAM 30 597000000 Hz -2.3 dBmV 44.7 dB 0 0
      31 Locked 256 QAM 31 603000000 Hz -2 dBmV 44.8 dB 0 0
      32 Locked 256 QAM 32 609000000 Hz -2.2 dBmV 44.8 dB 0 0


      Upstream Bonded Channels
      Channel LockedStatus ChannelType ChannelID SymbolRate Frequency Power
      1 Locked ATDMA 3 5120 Ksym/sec 29200000 Hz 34.5 dBmV
      2 Locked ATDMA 2 5120 Ksym/sec 22800000 Hz 34.3 dBmV
      3 Locked ATDMA 1 5120 Ksym/sec 16400000 Hz 34.5 dBmV
      4 Locked ATDMA 4 5120 Ksym/sec 35600000 Hz 34.5 dBmV
      5 Not Locked Unknown 0 0 0 0.0
      6 Not Locked Unknown 0 0 0 0.0
      7 Not Locked Unknown 0 0 0 0.0
      8 Not Locked Unknown 0 0 0 0.0


      Downstream OFDM Channels
      Channel LockedStatus ProfileID ChannelID Frequency Power SNR/MER ActiveSubcarrier Unerror Correctable Uncorrectable
      1 Locked 0 ,1 ,2 ,3 193 957000000 Hz -4.42 dBmV 41.4 dB 148 ~ 3947 10963806 1924625 0
      2 Not Locked 0 0 0 Hz 0 dBmV 0 dB 0 ~ 4095 0 0 0


      Upstream OFDMA Channels
      Channel LockedStatus ProfileID ChannelID Frequency Power
      1 Not Locked 0 0 0 Hz 0 dBmV
      2 Not Locked 0 0 0 Hz 0 dBmV


      Event Log
      Time Priority Description
      Mon Jan 8 12:23:51 2024 Critical UCD invalid or channel unusable;CM-MAC=94:18:65:a6:d4:03;CMTS-MAC=00:90:f0:27:01:00;CM-QOS=1.1;CM-VER=3.1;
      Mon Jan 8 12:23:51 2024 Notice DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=94:18:65:a6:d4:03;CMTS-MAC=00:90:f0:27:01:00;CM-QOS=1.1;CM-VER=3.1;
      Mon Jan 8 12:23:27 2024 Notice TLV-11 - unrecognized OID;CM-MAC=94:18:65:a6:d4:03;CMTS-MAC=00:90:f0:27:01:00;CM-QOS=1.1;CM-VER=3.1;
      Thu Jan 1 00:00:51 1970 Notice Honoring MDD; IP provisioning mode = IPv6
      Thu Jan 1 00:00:46 1970 Critical UCD invalid or channel unusable;CM-MAC=94:18:65:a6:d4:03;CMTS-MAC=00:90:f0:27:01:00;CM-QOS=1.1;CM-VER=3.1;
      Thu Jan 1 00:00:43 1970 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=94:18:65:a6:d4:03;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
      Mon Jan 8 12:20:31 2024 Critical UCD invalid or channel unusable;CM-MAC=94:18:65:a6:d4:03;CMTS-MAC=00:90:f0:27:01:00;CM-QOS=1.1;CM-VER=3.1;
      Thu Jan 1 00:00:46 1970 Critical UCD invalid or channel unusable;CM-MAC=94:18:65:a6:d4:03;CMTS-MAC=00:90:f0:27:01:00;CM-QOS=1.1;CM-VER=3.1;
      Thu Jan 1 00:00:43 1970 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=94:18:65:a6:d4:03;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
      Mon Jan 8 12:18:21 2024 Critical Resetting the cable modem due to docsDevResetNow
      Mon Jan 8 11:57:31 2024 Critical UCD invalid or channel unusable;CM-MAC=94:18:65:a6:d4:03;CMTS-MAC=00:90:f0:27:01:00;CM-QOS=1.1;CM-VER=3.1;
      Mon Jan 8 11:57:29 2024 Critical SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=94:18:65:a6:d4:03;CMTS-MAC=00:90:f0:27:01:00;CM-QOS=1.1;CM-VER=3.1;
      Thu Jan 1 00:03:05 1970 Critical No Ranging Response received - T3 time-out;CM-MAC=94:18:65:a6:d4:03;CMTS-MAC=00:90:f0:27:01:00;CM-QOS=1.1;CM-VER=3.1;
      Thu Jan 1 00:03:02 1970 Critical UCD invalid or channel unusable;CM-MAC=94:18:65:a6:d4:03;CMTS-MAC=00:90:f0:27:01:00;CM-QOS=1.1;CM-VER=3.1;
      Thu Jan 1 00:02:43 1970 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=94:18:65:a6:d4:03;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
      Thu Jan 1 00:00:57 1970 Critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=94:18:65:a6:d4:03;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;

       

      Here is the Event Log

      Mon Jan 8 12:23:51 2024Critical (3)UCD invalid or channel unusable;CM-MAC=94:18:65:a6:d4:03;CMTS-MAC=00:90:f0:27:01:00;CM-QOS=1.1;CM-VER=3.1;
      Mon Jan 8 12:23:51 2024Notice (6)DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=94:18:65:a6:d4:03;CMTS-MAC=00:90:f0:27:01:00;CM-QOS=1.1;CM-VER=3.1;
      Mon Jan 8 12:23:27 2024Notice (6)TLV-11 - unrecognized OID;CM-MAC=94:18:65:a6:d4:03;CMTS-MAC=00:90:f0:27:01:00;CM-QOS=1.1;CM-VER=3.1;
      Thu Jan 1 00:00:51 1970Notice (6)Honoring MDD; IP provisioning mode = IPv6
      Thu Jan 1 00:00:46 1970Critical (3)UCD invalid or channel unusable;CM-MAC=94:18:65:a6:d4:03;CMTS-MAC=00:90:f0:27:01:00;CM-QOS=1.1;CM-VER=3.1;
      Thu Jan 1 00:00:43 1970Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=94:18:65:a6:d4:03;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
      Mon Jan 8 12:20:31 2024Critical (3)UCD invalid or channel unusable;CM-MAC=94:18:65:a6:d4:03;CMTS-MAC=00:90:f0:27:01:00;CM-QOS=1.1;CM-VER=3.1;
      Thu Jan 1 00:00:46 1970Critical (3)UCD invalid or channel unusable;CM-MAC=94:18:65:a6:d4:03;CMTS-MAC=00:90:f0:27:01:00;CM-QOS=1.1;CM-VER=3.1;
      Thu Jan 1 00:00:43 1970Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=94:18:65:a6:d4:03;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
      Mon Jan 8 12:18:21 2024Critical (3)Resetting the cable modem due to docsDevResetNow
      Mon Jan 8 11:57:31 2024Critical (3)UCD invalid or channel unusable;CM-MAC=94:18:65:a6:d4:03;CMTS-MAC=00:90:f0:27:01:00;CM-QOS=1.1;CM-VER=3.1;
      Mon Jan 8 11:57:29 2024Critical (3)SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=94:18:65:a6:d4:03;CMTS-MAC=00:90:f0:27:01:00;CM-QOS=1.1;CM-VER=3.1;
      Thu Jan 1 00:03:05 1970Critical (3)No Ranging Response received - T3 time-out;CM-MAC=94:18:65:a6:d4:03;CMTS-MAC=00:90:f0:27:01:00;CM-QOS=1.1;CM-VER=3.1;
      Thu Jan 1 00:03:02 1970Critical (3)UCD invalid or channel unusable;CM-MAC=94:18:65:a6:d4:03;CMTS-MAC=00:90:f0:27:01:00;CM-QOS=1.1;CM-VER=3.1;
      Thu Jan 1 00:02:43 1970Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=94:18:65:a6:d4:03;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
      Thu Jan 1 00:00:57 1970Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=94:18:65:a6:d4:03;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;