RNG-RSP Commanded Power 6 dB issues ( multiple entries) on the S33v3

Here is the situation, there are multiple ( 10+) warning entries on the S33v3 of RNG-RSP Commanded Power 6 dB below,,,,,., apparently the CMTS is asking the modem to change it upstream power levels and the modem won’t comply. The drop line was replaced over a year ago with a type of RG6 coax cable (PPC Perfect Flex 6 Series ), however it’s Not the correct type for outdoor or direct bury use. The coax is labeled for indoor use only, I suspect this may in fact be the issue,,,any other ideas ?