Nighthawk CAX80 - Downstream power too low

Since getting this service two years ago my downstream power has always reported low, it wasn't until recently I've been experiencing outages intermittently and really poor connectivity.

Modem is a Nighthawk CAX80 with the latest firmware. Its in a spot in my office with good airflow.

I don't have any splitters and I have only one connection directly to the demarc outside my house connected via a coax coupler. I have checked the coupler that was installed at the house by the tech and I have even tried replacing with multiple new couplers and the results are the same.

I have contacted for support in the past and the technician wasn't helpful when I mentioned the low downstream power. I have scheduled for another tech to come out but short of replacing all the cables and couples I feel like this is on the ISP side. Not sure what else to do.

Here's an output of the latest logs from my modem:

Cable Diagnostic

Status: Poor

Action: 
[Partial Service]
If the Partial Service mode does not go away within a few hours (Click the Refresh button after each step):
1) Make sure the coaxial cable is tightly connected.
2) Remove any unnecessary splitters.
3) Replace any required ones.
4) Contact your service provider for troubleshooting help.
[Downstream Power Level]
Try these actions (Click the Refresh button after each step):
1) Make sure the coaxial cable is tightly connected.
2) Remove any unnecessary splitters.
3) Replace any required splitters.
4) Contact your service provider for troubleshooting help.

Internet Access: Good

Downstream Status: Bad

    Partial Service: Poor
    Cable modem is in partial service mode. Your service provider might be under maintenance. Most of the time it won't affect your traffic and will automatically clear when work is complete.

    Downstream Power Level: Bad
    Downstream power is poor (-17.0dBmV). The recommended level is between -10dBmV to 10dBmV.

    Downstream SNR: Good

Upstream Status:  Poor

    Partial Service: Poor
    Cable modem is in partial service mode. Your service provider might be under maintenance. Most of the time it won't affect your traffic and will automatically clear when work is complete.

    Upstream Power Level: Good

Current time: Sun Jan 26 20:03:10 2025

Startup Procedure
Acquire Downstream Channel: 543 MHz   Locked
Connectivity State:          OK       Operational
Boot State:                  OK       Operational
Security:                   Enabled   BPI+

Downstream Bonded Channels (Partial Service)
Channel LockedStatus Modulation ChannelID  Frequency        Power       SNR   Correctables Uncorrectables     
      1     Locked     256 QAM     17     543000000 Hz     -9.1 dBmV     40.9 dB     0     0
      2     Locked     256 QAM      1     441000000 Hz     -7 dBmV     41.1 dB     0     0
      3     Locked     256 QAM      2     453000000 Hz     -7.9 dBmV     40.9 dB     0     0
      4     Locked     256 QAM      3     459000000 Hz     -10.8 dBmV     40 dB     0     0
      5     Locked     256 QAM      4     465000000 Hz     -10.5 dBmV     40.1 dB     0     0
      6     Locked     256 QAM      5     471000000 Hz     -10.3 dBmV     40.2 dB     0     0
      7     Locked     256 QAM      6     477000000 Hz     -7.6 dBmV     41.2 dB     0     0
      8     Locked     256 QAM      7     483000000 Hz     -6.9 dBmV     41.5 dB     0     0
      9     Locked     256 QAM      8     489000000 Hz     -7.6 dBmV     41.4 dB     0     0
     10     Locked     256 QAM      9     495000000 Hz     -10.5 dBmV     40.2 dB     0     0
     11     Locked     256 QAM     10     501000000 Hz     -13 dBmV     39.1 dB     0     0
     12     Locked     256 QAM     11     507000000 Hz     -14.6 dBmV     38 dB     0     0
     13     Locked     256 QAM     12     513000000 Hz     -14.2 dBmV     38.3 dB     0     0
     14     Locked     256 QAM     13     519000000 Hz     -11.7 dBmV     39.8 dB     0     0
     15     Locked     256 QAM     14     525000000 Hz     -9.1 dBmV     40.9 dB     0     0
     16     Locked     256 QAM     15     531000000 Hz     -6.6 dBmV     41.8 dB     0     0
     17     Locked     256 QAM     16     537000000 Hz     -7.5 dBmV     41.6 dB     0     0
     18     Locked     256 QAM     18     549000000 Hz     -11.5 dBmV     39.8 dB     0     0
     19     Locked     256 QAM     19     561000000 Hz     -11.4 dBmV     39.9 dB     0     0
     20     Locked     256 QAM     20     567000000 Hz     -9.8 dBmV     40.7 dB     0     0
     21     Locked     256 QAM     21     573000000 Hz     -9.8 dBmV     40.6 dB     0     0
     22     Locked     256 QAM     22     579000000 Hz     -11.3 dBmV     39.9 dB     0     0
     23     Locked     256 QAM     23     585000000 Hz     -15.7 dBmV     37 dB     0     0
     24     Locked     256 QAM     24     591000000 Hz     -16.9 dBmV     36.1 dB     0     0
     25     Locked     256 QAM     25     597000000 Hz     -17 dBmV     36.1 dB     0     0
     26     Locked     256 QAM     26     603000000 Hz     -15.6 dBmV     37.1 dB     0     0
     27     Locked     256 QAM     27     609000000 Hz     -12.1 dBmV     39.4 dB     0     0
     28     Locked     256 QAM     28     615000000 Hz     -8.8 dBmV     40.3 dB     0     0
     29     Locked     256 QAM     29     621000000 Hz     -6.6 dBmV     41.7 dB     0     0
     30     Locked     256 QAM     30     627000000 Hz     -8.3 dBmV     41.2 dB     0     0
     31     Locked     256 QAM     31     633000000 Hz     -10.4 dBmV     40.1 dB     0     0
     32     Not Locked     Unknown      0     0 Hz     0.0     0.0     0     0

Upstream Bonded Channels (Partial Service)
Channel   LockedStatus  ChannelType ChannelID   SymbolRate        Frequency       Power     
      1       Locked       ATDMA      2       5120 Ksym/sec       22800000 Hz       53.0 dBmV
      2       Locked       ATDMA      1       5120 Ksym/sec       16300000 Hz       53.0 dBmV
      3       Locked       ATDMA      3       5120 Ksym/sec       29200000 Hz       53.0 dBmV
      4       Locked       ATDMA      4       5120 Ksym/sec       35600000 Hz       53.0 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     37     693000000 Hz     -12.92 dBmV     35.6 dB     1108 ~ 2987     26878593     23647117     1461798
      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
Sun Jan 26 20:02:47 2025     Notice     CM-STATUS message sent. Event Type Code: 16; Chan ID: 37; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1 2 3.;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Sun Jan 26 20:02:44 2025     Notice     CM-STATUS message sent. Event Type Code: 16; Chan ID: 37; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Sun Jan 26 20:02:24 2025     Notice     CM-STATUS message sent. Event Type Code: 24; Chan ID: 37; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1 2.;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Sun Jan 26 20:01:43 2025     Notice     CM-STATUS message sent. Event Type Code: 16; Chan ID: 37; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Sun Jan 26 20:00:31 2025     Notice     CM-STATUS message sent. Event Type Code: 24; Chan ID: 37; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1 2.;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Sun Jan 26 19:59:59 2025     Notice     CM-STATUS message sent. Event Type Code: 16; Chan ID: 37; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 1 2 3.;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Sun Jan 26 19:59:39 2025     Notice     CM-STATUS message sent. Event Type Code: 16; Chan ID: 37; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Sun Jan 26 19:58:18 2025     Notice     CM-STATUS message sent. Event Type Code: 24; Chan ID: 37; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2.;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Sun Jan 26 19:56:17 2025     Notice     CM-STATUS message sent. Event Type Code: 16; Chan ID: 37; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Sun Jan 26 19:56:02 2025     Notice     CM-STATUS message sent. Event Type Code: 24; Chan ID: 37; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2.;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Sun Jan 26 19:55:22 2025     Notice     CM-STATUS message sent. Event Type Code: 16; Chan ID: 37; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Sun Jan 26 19:54:21 2025     Notice     CM-STATUS message sent. Event Type Code: 24; Chan ID: 37; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2.;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Sun Jan 26 19:53:46 2025     Notice     CM-STATUS message sent. Event Type Code: 16; Chan ID: 37; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 2 3.;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Sun Jan 26 19:52:54 2025     Critical     Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Sun Jan 26 19:44:59 2025     Critical     No Ranging Response received - T3 time-out;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Sun Jan 26 19:44:58 2025     Notice     CM-STATUS message sent. Event Type Code: 16; Chan ID: 37; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Sun Jan 26 19:44:56 2025     Critical     No Ranging Response received - T3 time-out;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Sun Jan 26 19:43:47 2025     Notice     DS profile assignment change. DS Chan ID: 32; Previous Profile: ; New Profile: 1 2 3.;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Sun Jan 26 19:43:46 2025     Notice     TLV-11 - unrecognized OID;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Thu Jan  1 00:00:35 1970     Notice     Honoring MDD; IP provisioning mode = IPv6
Thu Jan  1 00:00:31 1970     Critical     No Ranging Response received - T3 time-out;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Thu Jan  1 00:00:26 1970     Critical     SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=REMOVED;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Sun Jan 26 19:41:53 2025     Critical     Resetting the cable modem due to docsDevResetNow
Sun Jan 26 19:39:44 2025     Critical     No Ranging Response received - T3 time-out;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Sun Jan 26 19:39:35 2025     Critical     No Ranging Response received - T3 time-out;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Thu Jan  1 00:03:47 1970     Critical     Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Thu Jan  1 00:02:30 1970     Critical     No Ranging Response received - T3 time-out;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Thu Jan  1 00:02:25 1970     Critical     Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Thu Jan  1 00:01:28 1970     Critical     No Ranging Response received - T3 time-out;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Thu Jan  1 00:01:23 1970     Critical     Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Thu Jan  1 00:00:30 1970     Critical     No Ranging Response received - T3 time-out;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Thu Jan  1 00:00:30 1970     Critical     SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=REMOVED;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.1;CM-VER=3.1;
Sun Jan 26 19:24:38 2025     Critical     Resetting the cable modem due to docsDevResetNow
Sun Jan 26 19:23:44 2025     Critical     No Ranging Response received - T3 time-out;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Sun Jan 26 19:23:37 2025     Critical     SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Sun Jan 26 19:05:47 2025     Critical     No Ranging Response received - T3 time-out;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Sun Jan 26 19:05:46 2025     Critical     No Ranging Response received - T3 time-out;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Sun Jan 26 19:04:21 2025     Critical     Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;
Sun Jan 26 19:02:23 2025     Critical     No Ranging Response received - T3 time-out;CM-MAC=REMOVED;CMTS-MAC=REMOVED;CM-QOS=1.1;CM-VER=3.1;