Intermittent large ping spikes - Critical Downstream power level errors on Hub
Hello All, Looking for some help with a really annoying issue I'm having on my 1Gbps line with Virgin media, speed is fine but intermittently I am getting huge ping spikes that can sometimes reach over 4000ms (see below) How I noticed this was being on Discord and the connection dropping out intermittently, it can happen once in 5 minutes or many times in quick succession. I've ruled out the PC by connecting it to a different connection which does not have the ping spikes. When logging on to the router, I am seeing quite a few errors on the log page: You will see that I've rebooted the router a few times and reset but the same errors keep coming back up. These errors have been the same since 8AM this morning Time Priority Description 11-03-2024 19:49:23 notice GUI Login Status - Login Success from LAN interface 11-03-2024 19:30:33 warning RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; 11-03-2024 19:30:14 notice REGISTRATION COMPLETE - Waiting for Operational status 11-03-2024 19:30:09 warning RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; 11-03-2024 19:30:08 warning REG-RSP-MP Mismatch Between Calculated Value for P1.6hi Compared to CCAP Provided Value;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; 11-03-2024 19:30:08 warning RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; 11-03-2024 19:30:08 warning Dynamic Range Window violation 11-03-2024 19:30:03 notice DS 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; 11-03-2024 19:29:55 warning DHCP WARNING - Non-critical field invalid in response ;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; 11-03-2024 19:29:53 notice Honoring MDD; IP provisioning mode = IPv4 11-03-2024 19:29:38 critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; 11-03-2024 19:29:38 critical Cable Modem Reboot because of - Reboot Timezone Change 11-03-2024 19:26:42 critical No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; 11-03-2024 19:26:33 critical Cable Modem Reboot because of - Reboot Factory reset ACS 11-03-2024 19:26:33 critical SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1; Would appreciate any help on this as its infuriating me, would these errors be causing the spikes in ping? Thanks in advance all
