Upstream issues/intermittent connection problem

First, not that it's causing your problem, but watch out for the CM700. Has the lemon Puma 6 CPU inside it. While Cox is in the process of rolling out the newest patch it has been a long time coming, and is still hit or miss. CM600 or CM1000 would be the models above and below the CM700 which are not effected by the bug.

With that said, your issue is your upstream power levels. Looks like noise is occuring randomly and forcing your modem to yell to be heard, causing the T3 errors. Can you describe how the coaxial gets from the street to your house? Splitters? Amps? Underground wiring?

I was plagued with the same puma 6 with the Arris SB6190 I now have the SB8200 planning for the future.  My area has its monthly cycle of great quality and a week of **.  reason I replaced the SB6190.  Some things I have learned.  This thing called MoCa if your neighbors use a MoCa network like the panoramic wifi Cox offers and you or them do not have a POE MoCa filter you may be getting some interference from their network.  MoCa filters are cheap or Cox may provide one.  this helped my modem since the SB8200 has no MoCa blocking capabilities due to the DOCSIS 3.1.  But look in to a MoCa filter, did help my situation but still my area is bad in connection as usual

I pay for 300x30 current speed 12x30 alway great here in my area.

I collect a lot of uncorrectable when the quality in my area gets bad not sure what causes these to include a few days of errors. ranges from level 3 to level 6 errors.  I belive a lot of our connection issues have become more frequent every time a new speed level is added and cox is unable to sustain in the beginning.  im looking fwd to cox fiber I have my fingers crossed that it makes it to my area.   

good luck

I had a second tech out at the start of the week taking a look into my situation over here. He did the usual signal test but as I was explaining the issue he said "interference" and said he was going to go grab some tools off his truck. He came back in and tested my line and found power on it. He traced it to my outside storage unit where an unknown cable was being fed into a splitter that was rather dated (probably installed some 15+ years ago at this location). I had the tech bypass the splitter as I wasn't using the cable in my bedroom and have no intention to use it during the next 6 months that I'll be here.

The internet worked fine for a few hours after that discovery but again started to have issues as the evening rolled on. I let most of the week go by to see how many times I would get T3 time-out issues so I could report back asking for further assistance. Today I jumped on my modem to see what the event log had to say and found the following:

It's not showing now but at the time of the T3 time-out today around 5 pm my dBmV for upstream channels was pushing 51 again.

Here is an updated look at my downstream and upstream channels:

Since the issue seems to persist (granted not as heavily as it was when I had power running on my coaxial for who-knows-what reason) I would like to ask if there is any further insight you could provide. If this is a chip issue as was stated by UnhappyCustomer1 is there nothing I can do while waiting for the patch on the issue? Also I cannot explain how the cable gets from the street to my particular apartment though I am right next to the street/cable lines and lines are usually run underground here, not 100% sure that's the case here but I think it is. Assuming the only splitter in my apartment was the one in the storage unit I no longer go through any splitters.

Just an update on this. After having a MoCA filter installed I went a few days (maybe 4) without any noticeable service interrupt but I'm still having intermittent issues on my end. I'm starting to think this is just an issue I'm going to have to live with for the next half year until I can move out of this location. In all my years in Arizona I have never had such a long lasting problem with internet service.

I have unplugged and moved the power strip the router was plugged into, I have bypassed all possible splitters, I have taken the modem off my power strip and plugged directly into multiple different outlets. I have tried time and again to explain that I see more intermittent issues in the evening sometimes early morning than anything else. The last tech out was going to put in a new drop for me but due to the way things are wired here that was not  possible. He took the plate off and took a look at the wiring and confirmed it's relatively new. I don't know what else they can even look at from my apartment to the 'monster box' attached to the side of my building feeding all the connections to the individual units here.

I'm at a complete loss, I don't know that another tech is going to see anything different than the previous 3 have and my limited knowledge on this subject is already at its limit. I wish I could better describe the issue but I cannot!

Event log from today:

How my channels looks since rebooting modem on Saturday:

I tried to post an update to this but it got flagged as spam. I had the 3rd tech come out and he installed a MoCA filter to see if that would help my issue. It did not. I'm getting "Unicast Ranging Received Abort Response - initializing MAC" showing up a lot now and still having intermittent connectivity issues.