hampton14...oh wow, so sorry for you situation. Looking at your display, well seeing power levels go from +8.2 to -19.2, I have never seen + and - in the same screen and even a Not Locked 0.0. I have never seen corrected and uncorrected numbers that high....there is definitely something wrong. I'm guessing your modems Upload power value are weird too. I'm told that power levels ranging in the +-7 are great, +-10 starting to waiver, and that the differences between the high/low, well about 3 or so.
I'm not the technical expert except reading what WiderMouth, Bruce and a few others. How to Fix, is what you really want to know.! You have probably run CMD, Ping -n 30 cox.net and also CMD, tracert cox.net to look for lost packets and ** in the tracert hop results. I've run PingPlotter and WinMTR to look at intermediate hop PLoss....I have intermediate PLoss to cox.com, but Netgear tells me to concern myself with the 1st and last hop. The intermediate hops are not as meaningful especially if the last hop is acceptable. BUT it seems your issues are more local, especially with Modem Power issues. These commands and tools may just lead to more frustrations.
Have you tried connecting the modem directly to the wall coax, and bypass any splitter. My splitter is causing me to get slightly less than desirable results, but nothing even close to yours. I never had +- values and only 0 corrected/uncorr values. The only issue I was facing was Cox speedtest giving me lower Upload values, with my downloads in the 230Mbps.
I hope to read some follow-up from the power forum guys. Of course, COX may say you have packet losses and you need to schedule a tech call.
i dont know if the upload ones are that bad, aren't they supposed to sit around 42 dBmV? strangely even two months ago with the original issue the upload speeds i was seeing with a speed test were about even with what i've always gotten.
i have no idea about those tools you suggested. just tried winMTR and now i'm scared... heh, i'll look up more info on that later.
i'll try direct connect to the wall, though i'm left wondering what the amp is even for with that. they made it sound years ago like there was something added to the box outside that it powers but i though it just supplied more power to the line?
edit: so i ran coax from wall straight to modem and i've got fine speeds (strangely the upload is actually 3x better?), but for whatever reason i can't enter my modem diagnostic page... going to try resetting because i cant see how removing the amp and splitter from the equation could cause this.
