Connectivity problems with SB8200

I've been experiencing problems with my SB8200 lately.   I've had a tech out to look at it.   They have replaced the cable from the pole to the house and from the wall to the modem.   

 

My event log is full of these messages that alternate back and forth.  CM-STATUS message sent. Event Type Code: 16;Chan ID: 37 and CM-STATUS message sent. Event Type Code: 24; Chan ID: 37.   They happen about once per minute and last for several hours of the day.     From what I understand from my research, the lock on this channel is dropping.

 

I know that channel 37 is the OFDM channel and I think it might be out of spec.  The tech told me comcast has done all they can do and my next attempt should be to replace my modem since I own it.  I don't think that's my problem.   My stats are below.   Do you think this is indeed my modem causing a problem, do I need a tech back out here, or something on the comcast side?  Thanks in advance for any assistance.

Acquire Downstream Channel	417000000 Hz	Locked
Connectivity State	OK	Operational
Boot State	OK	Operational
Configuration File	OK
Security	Enabled	BPI+
DOCSIS Network Access Enabled	Allowed

 

Downstream Bonded Channels
Channel ID	Lock Status	Modulation	Frequency	Power	SNR/MER	Corrected	Uncorrectables
38	Locked	QAM256	417000000 Hz	3.3 dBmV	35.0 dB	0	0
1	Locked	QAM256	453000000 Hz	1.6 dBmV	35.1 dB	0	0
2	Locked	QAM256	459000000 Hz	1.6 dBmV	35.3 dB	0	0
3	Locked	QAM256	465000000 Hz	1.6 dBmV	35.5 dB	0	0
4	Locked	QAM256	471000000 Hz	1.4 dBmV	35.4 dB	0	0
5	Locked	QAM256	477000000 Hz	1.3 dBmV	35.4 dB	0	0
6	Locked	QAM256	483000000 Hz	0.9 dBmV	34.9 dB	0	0
7	Locked	QAM256	489000000 Hz	0.4 dBmV	34.5 dB	0	0
8	Locked	QAM256	495000000 Hz	0.2 dBmV	34.2 dB	0	0
9	Locked	QAM256	507000000 Hz	0.0 dBmV	33.9 dB	7	0
10	Locked	QAM256	513000000 Hz	0.3 dBmV	34.0 dB	0	0
11	Locked	QAM256	519000000 Hz	1.0 dBmV	34.4 dB	0	0
12	Locked	QAM256	525000000 Hz	1.8 dBmV	34.8 dB	0	0
13	Locked	QAM256	531000000 Hz	2.9 dBmV	35.4 dB	14	0
14	Locked	QAM256	537000000 Hz	3.8 dBmV	35.8 dB	26	0
15	Locked	QAM256	543000000 Hz	4.2 dBmV	36.4 dB	25	0
16	Locked	QAM256	549000000 Hz	3.7 dBmV	36.5 dB	9	0
17	Locked	QAM256	555000000 Hz	2.5 dBmV	36.2 dB	3	0
18	Locked	QAM256	561000000 Hz	1.1 dBmV	35.6 dB	0	0
19	Locked	QAM256	567000000 Hz	-0.3 dBmV	34.5 dB	0	0
20	Locked	QAM256	573000000 Hz	-1.1 dBmV	33.6 dB	0	0
21	Locked	QAM256	579000000 Hz	-1.6 dBmV	33.0 dB	0	0
22	Locked	QAM256	585000000 Hz	-1.7 dBmV	33.7 dB	0	0
23	Locked	QAM256	591000000 Hz	-1.3 dBmV	33.9 dB	0	0
24	Locked	QAM256	597000000 Hz	-0.6 dBmV	34.3 dB	0	0
25	Locked	QAM256	603000000 Hz	0.4 dBmV	34.7 dB	0	0
26	Locked	QAM256	609000000 Hz	1.5 dBmV	35.3 dB	35	0
27	Locked	QAM256	615000000 Hz	3.2 dBmV	36.0 dB	159	0
37	Locked	Other	690000000 Hz	-0.2 dBmV	25.5 dB	1461706434	35226511
39	Not Locked	QAM256	0 Hz	0.0 dBmV	34.7 dB	0	0
40	Locked	QAM256	423000000 Hz	2.9 dBmV	34.7 dB	0	0
41	Locked	QAM256	429000000 Hz	2.6 dBmV	34.6 dB	0	0

 

Upstream Bonded Channels
Channel	Channel ID	Lock Status	US Channel Type	Frequency	Width	Power
1	90	Locked	SC-QAM Upstream	29400000 Hz	6400000 Hz	41.0 dBmV
2	89	Locked	SC-QAM Upstream	35800000 Hz	6400000 Hz	41.0 dBmV
3	91	Locked	SC-QAM Upstream	23000000 Hz	6400000 Hz	40.0 dBmV
4	92	Locked	SC-QAM Upstream	16600000 Hz	6400000 Hz	40.0 dBmV