No Ranging Response received - T3 time-out error

Trying to figure out if I have a potential problem with my Netgear CMD31T modem or if there is a communication problem between the modem and Cox servers. As I expected this problem is way above the heads of Tier 1 support so I thought I'd check in here. My downstream throughput is fine (60M) and I do have upstream throughput that is within parameters (5M).

My problem is the modem upstream channel/sync lights show a problem. 1/2 is orange and 3/4 is out. When I get into the modem it shows sync and signal issues:

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Startup Procedure
Procedure	Status	Comment
Acquire Downstream Channel	789000000 Hz	Locked
Connectivity State	OK	Operational
Boot State	OK	Operational
Configuration File	Complete
Security	Enabled	BPI+

Downstream Channel 0
Lock Status	Locked	Modulation	256 QAM
Channel ID	1	Symbol rate	5360537
Downstream Frequency	789000000 Hz	Downstream Power	9.3961 dBmV
SNR	37.6363 dBmV	Correctables	422
Uncorrectables	694

Downstream Channel 1
Lock Status	Locked	Modulation	256 QAM
Channel ID	2	Symbol rate	5360537
Downstream Frequency	783000000 Hz	Downstream Power	9.1820 dBmV
SNR	37.9359 dBmV	Correctables	393
Uncorrectables	1374

Downstream Channel 2
Lock Status	Locked	Modulation	256 QAM
Channel ID	3	Symbol rate	5360537
Downstream Frequency	795000000 Hz	Downstream Power	8.6046 dBmV
SNR	37.9359 dBmV	Correctables	414
Uncorrectables	469

Downstream Channel 3
Lock Status	Locked	Modulation	256 QAM
Channel ID	4	Symbol rate	5360537
Downstream Frequency	801000000 Hz	Downstream Power	8.9304 dBmV
SNR	38.2578 dBmV	Correctables	1644
Uncorrectables	8457

Upstream Channel 0
Lock Status	Locked	Modulation	64QAM
Channel ID	4	Symbol rate	5120 Ksym/sec
Upstream Frequency	36700000 Hz	Upstream Power	35.7500 dBmV

Upstream Channel 1
Lock Status	Not Locked	Modulation
Channel ID	0	Symbol rate	0 Ksym/sec
Upstream Frequency	0 Hz	Upstream Power	0 dBmV

Upstream Channel 2
Lock Status	Not Locked	Modulation
Channel ID	0	Symbol rate	0 Ksym/sec
Upstream Frequency	0 Hz	Upstream Power	0 dBmV

Upstream Channel 3
Lock Status	Not Locked	Modulation
Channel ID	0	Symbol rate	0 Ksym/sec
Upstream Frequency	0 Hz	Upstream Power	0 dBmV

Current System Time:Tue Jan 16 14:34:19 2018

This is a recent error log

Tue Jan 2 23:12:32 2018	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=e8:fc:af:ad...
Wed Jan 3 23:11:16 2018	Notice (6)	DHCP Renew - lease parameters tftp file-^1/C312B450/DEF/001 m...
Sun Jan 7 08:49:02 2018	Critical (3)	No Ranging Response received - T3 time-out;CM-MAC=e8:fc:af:ad
Sun Jan 14 11:11:16 2018	Notice (6)	DHCP Renew - lease parameters tftp file-^1/C312B450/DEF/001 m...
Time Not Established	Warning (5)	MDD message timeout;CM-MAC=e8:fc:af:ad:XX:XX;CMTS-MAC=2c:86:d...
Mon Jan 15 16:26:20 2018	Warning (5)	MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=...
Mon Jan 15 16:26:20 2018	Notice (6)	TLV-11 - unrecognized OID;CM-MAC=e8:fc:af:ad:XX:XX

a note--I've modified the modem MAC address in this log for security.

I'm trying to confirm if I've got a modem in a pre fail state. If that is the case, I don't need a truck roll to my site.

Advice on next steps?

Thanks

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No Ranging Response received - T3 time-out error

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