Surfboard 6141 modem

In order to update the modem's firmware it has to be online and stable.  If the modem is losing sync I'd suggest checking for loose/damaged cable fittings, bypassing any cable splitters you have, and testing the modem on different cable outlets if possible to see if any of that makes a difference.

I have the exact same problem. It just started on the 26th like you, and never had an issue before prior to the 26th. I also have the same hardware configuration as you(surfboard 6141 and ASUS RT AC68U router). This seems more and more like a Cox issue than the modem...

It's been intermittent when the modem reboots but on Thursday it seemed like it was rebooting almost every couple hours.

I contacted Cox chat support, they just resent the signal to reset my modem but that didn't resolve the issue.

My signal strength seems to be fine, I removed all the splitters that was installed, so the modem gets a direct connection from the feed. Given the person who started the thread started having the same problem on the same day, something was changed.

This is my signal log from my modem, shortly after it rebooted. 

Channel ID	3	1	2	4
Frequency	825000000 Hz	813000000 Hz	819000000 Hz	831000000 Hz
Signal to Noise Ratio	36 dB	36 dB	36 dB	37 dB
Downstream Modulation	QAM256	QAM256	QAM256	QAM256
Power Level The Downstream Power Level reading is a snapshot taken at the time this page was requested. Please Reload/Refresh this Page for a new reading	-6 dBmV	-5 dBmV	-6 dBmV	-6 dBmV

Upstream	Bonding Channel Value
Channel ID	1	2	3
Frequency	23810000 Hz	30210000 Hz	35580000 Hz
Ranging Service ID	19	19	19
Symbol Rate	5.120 Msym/sec	5.120 Msym/sec	2.560 Msym/sec
Power Level	48 dBmV	49 dBmV	50 dBmV
Upstream Modulation	[3] 16QAM [3] 64QAM	[3] 16QAM [3] 64QAM	[3] QPSK [2] 16QAM [3] 64QAM
Ranging Status	Success	Success	Success

Signal Stats (Codewords)	Bonding Channel Value
Channel ID	3	1	2	4
Total Unerrored Codewords	26192467	26192470	26192591	26192473
Total Correctable Codewords	10	14	0	14
Total Uncorrectable Codewords	680	674	549	672

@professorhm

I'd say you definitely have something going on.  As of looking at it now I only saw 1 upstream channel bonded but a reboot took care of that which may be why the modem keeps rebooting.  It may be necessary for a technician to come out and troubleshoot further.