CBR750 Constantly disconnecting

Here is my cable box outside the house. Cox (ISP) says there is nothing wrong on their end even when I ask them to pull logs. I even asked them to check when my internet was out and I had the maroon light at the bottom of the modem...

So I have a technician coming out on Friday to hopefully handle this splitter and I will do another modem reset Friday after I get my new coax in. Maybe that will make a difference. If not, I have an RMA for the CBR750 approved as well.

Thoughts? 

See if the the tech will remove that splitter long enough for you to take another cable connections status page. The more direct connection from the modem to the ISP service box is preferred. Help narrow down your problem. Any problems on the line will cause problems with modems. 

Tech removed the splitter and said everything was looking good on their end. I did another reset as well and today I have had continuous wifi drops requiring reboot of the modem. So I am at a loss with this unit. I am going to try and process an RMA because otherwise I don't know why it would continue to drop out.

Can you post new cable connection status capture and event logs here?

What channels are you using on Wifi? Try channel 1 and 40. 

Set 40Mhz only and also try turning down the power output of the RBRs wifi radios from 100% to 50% and see if this changes anything. Under Advanced Tab/Advanced Settings/Wireless Settings

Let us know if the RMA unit does the same thing...

 I will take a look at these settings tonight. My unit does continue to drop daily unfortunately. Is it common for Netgear to extort people processing an RMA? Why should I have to pay to have the RMA shipped before I return mine? Because if I don't pay money for whatever expedited shipping process they have I won't receive my RMA because I cannot ship my unit back and be without internet. This is absurd. 

Ask for a cross shipping RMA. They should be able to send you a unit before you send yours back. 

Here is my most recent event log. Taken before any recommended changes. I changed my output to 50% again. That switched after my most recent reset. Unchecked the 20/40mhz box. And changed my 5Ghz to channel 40 from 48. 2.4Ghz was already set on channel 1. We will see what the log looks like tomorrow.

I see lots of errors and criticals that the ISP needs to review between them and the modem to help resolve them.

Can you get a tech on site by chance? 

Ok. How has it been running since? 

Since the tech came out there have still been daily drops requiring a modem reset. Here is today's event log after making the recommended changes last night. Only one drop today but that was around 1pm and I couldn't do a over the air reset using my ISP app so my connected devices were down which is my main concern. So right now not sure what else I should try. Netgear is not willing to ship me my RMA with standard shipping and they are adamant I pay for advanced shipping which seems like complete BS.

"I really understand your situation but as per company policy If you choose standard delivery you need to send faulty device first .

If you need a replacement device first means you need to choose advance delivery option (which is payable )"

Here is the downstream power levels. Been running 50% as well since last night. Thoughts?

Event log shows criticals that timing sync is being lost so this is something on the ISP line or signal that's not right. 
Power levels are at the high limit but should ok. However you have way too many correct and uncorrectables still. Those should be zero's. This shows there is problems on the ISP line. 

Try for an RMA and see if a different unit exhibits the same problem. If it does then this is an ISP line problem the ISP needs to correct. 

I have the Cox technician coming today and I already mentioned the correctables/uncorrectables and errors to him. He said if the lines to the house are showing fine then he is going to say the modem is the issue and since it isn't their equipment nothing they can do. That was over the phone though so I guess I will see what occurs when he arrives. I will update later today but fair bet is they are going to blame my modem and make it not their problem. 

Of course. One thing you can do, ask for a loaner modem and test there modem for a bit. 

Those Correct and Uncorrectables is the CBR trying to do it's own corrections to the signal coming from the ISP. IF the signal and cabling and connections are ALL good, technically, those values should all be zeros. 

Though not same model modem I have online but example of how NG modems should look: CM1200

1 Locked QAM256 27 813000000 Hz -5.3 dBmV 36.6 dB 0 0
2 Locked QAM256 1 651000000 Hz -4.7 dBmV 35.8 dB 0 0
3 Locked QAM256 2 657000000 Hz -4.8 dBmV 35.8 dB 0 0
4 Locked QAM256 3 663000000 Hz -4.6 dBmV 35.9 dB 0 0
5 Locked QAM256 5 675000000 Hz -4.3 dBmV 36 dB 0 0
6 Locked QAM256 6 681000000 Hz -4.1 dBmV 36.2 dB 0 0
7 Locked QAM256 7 687000000 Hz -4 dBmV 36.2 dB 0 0
8 Locked QAM256 8 693000000 Hz -4 dBmV 36.3 dB 0 0
9 Locked QAM256 9 699000000 Hz -3.8 dBmV 36.4 dB 0 0
10 Locked QAM256 10 705000000 Hz -3.9 dBmV 36.2 dB 0 0
11 Locked QAM256 11 711000000 Hz -3.9 dBmV 36.3 dB 0 0
12 Locked QAM256 12 717000000 Hz -3.6 dBmV 36.5 dB 0 0
13 Locked QAM256 13 723000000 Hz -3.8 dBmV 36.3 dB 0 0
14 Locked QAM256 14 729000000 Hz -3.7 dBmV 36.2 dB 0 0
15 Locked QAM256 15 735000000 Hz -3.5 dBmV 35.8 dB 0 0
16 Locked QAM256 16 741000000 Hz -3.5 dBmV 35.7 dB 0 0
17 Locked QAM256 17 753000000 Hz -3.7 dBmV 36.2 dB 0 0
18 Locked QAM256 18 759000000 Hz -4 dBmV 36.5 dB 0 0
19 Locked QAM256 19 765000000 Hz -4.4 dBmV 36.3 dB 0 0
20 Locked QAM256 20 771000000 Hz -4.4 dBmV 36.6 dB 0 0
21 Locked QAM256 21 777000000 Hz -4.7 dBmV 36.7 dB 0 0
22 Locked QAM256 22 783000000 Hz -4.9 dBmV 36.7 dB 0 0
23 Locked QAM256 23 789000000 Hz -4.9 dBmV 36.7 dB 0 0
24 Locked QAM256 24 795000000 Hz -5.1 dBmV 36.7 dB 0 0
25 Locked QAM256 25 801000000 Hz -5.4 dBmV 36.5 dB 0 0
26 Locked QAM256 26 807000000 Hz -5.3 dBmV 36.6 dB 0 0
27 Locked QAM256 28 819000000 Hz -5.7 dBmV 36.3 dB 0 0
28 Locked QAM256 29 825000000 Hz -5.5 dBmV 36.5 dB 0 0
29 Locked QAM256 30 831000000 Hz -5.6 dBmV 36.4 dB 0 0
30 Locked QAM256 31 837000000 Hz -5.8 dBmV 36.3 dB 0 0
31 Locked QAM256 32 843000000 Hz -6.2 dBmV 36.3 dB 0 0
32 Not Locked Unknown 0 0 Hz 0.0 dBmV 0.0 dB 0 0

The last two values are my Correct and Un-correctables. I had my CBR750 online a few months back. Same values though I did have a few items that had some uncorrectables. I found that my coax cable connector on the back of the CBR was not fully seated. Re-seated the connector and the values were all zeros. Mostly a cable and connector or line splitter can cause these issues here. 

Keep us posted. 

Well I can say that this the ISP didn't do anything which will make my situation better. Still having these errors show after the tech left. My correctable/uncorrectables I don't even know how they show what they do now. He cut the line to the house and put a new end on and switched out the coax cable I purchased as he said that was causing more ingress than the cable he put on. I will post the correctable next. The tech scheduled a follow up for this Tuesday so I am certain I will need to reboot several times until then.

Here is what it shows now...its comical.

Power is a bit on the high side...

Too many Correct and uncorrectables. 

Criticals in the events log that the ISP needs to review. 

ANy chance you have a friend or family member that has cable ISP that you could take the CBR to test out there by chance. Would be interesting to see if problem followed the CBR or not. 

I showed the tech that and discussed all that stuff. He changed my coax to their's, cut the line and put a new terminal on, and scheduled a follow up this Tuesday. At this point nothing I can do other than try to get a different modem through the ISP to see if that changes anything and continue to process the RMA which Netgear is giving me challenges with. The correctables/uncorrectables numbers are getting higher so I don't know. I have done what I can do.

Ok.