Internet Constantly Down for Months

My internet has been going down for 5-240 minutes at a time intermittently for multiple months now. I’ve had many techs come out and have had the following done already:

1) replaced line to house and buried last year

2) replaced the outlet into the house

3) replaced the coax in the house to the modem

4) replaced the modem

5) had an attenuator installed

5) had that attenuator replaced with a different one

The new modem is an SB6190

Here are some logs from the modem, it’s up right now but was down just a bit ago. 

Thu Jan 01 00:02:05 1970	3	No Ranging Response received - T3 time-out;CM-MAC=f8:2d:c0:9a:4a:8f;CMTS-MAC=00:42:5a:1d:c0:ed;CM-QOS=1.1;CM-VER=3.0;
Thu Jan 01 00:02:39 1970	3	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=f8:2d:c0:9a:4a:8f;CMTS-MAC=00:42:5a:1d:c0:ed;CM-QOS=1.1;CM-VER=3.0;
Thu Jan 01 00:02:39 1970	3	No Ranging Response received - T3 time-out;CM-MAC=f8:2d:c0:9a:4a:8f;CMTS-MAC=00:42:5a:1d:c0:ed;CM-QOS=1.1;CM-VER=3.0;
Thu Jan 01 00:03:18 1970	3	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=f8:2d:c0:9a:4a:8f;CMTS-MAC=00:42:5a:1d:c0:ed;CM-QOS=1.1;CM-VER=3.0;
Thu Jan 01 00:03:19 1970	3	No Ranging Response received - T3 time-out;CM-MAC=f8:2d:c0:9a:4a:8f;CMTS-MAC=00:42:5a:1d:c0:ed;CM-QOS=1.1;CM-VER=3.0;
Thu Jan 01 00:04:01 1970	3	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=f8:2d:c0:9a:4a:8f;CMTS-MAC=00:42:5a:1d:c0:ed;CM-QOS=1.1;CM-VER=3.0;
Thu Jan 01 00:04:01 1970	3	No Ranging Response received - T3 time-out;CM-MAC=f8:2d:c0:9a:4a:8f;CMTS-MAC=00:42:5a:1d:c0:ed;CM-QOS=1.1;CM-VER=3.0;
Thu Jan 01 00:04:30 1970	3	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=f8:2d:c0:9a:4a:8f;CMTS-MAC=00:42:5a:1d:c0:ed;CM-QOS=1.1;CM-VER=3.0;
Thu Jan 01 00:04:30 1970	3	No Ranging Response received - T3 time-out;CM-MAC=f8:2d:c0:9a:4a:8f;CMTS-MAC=00:42:5a:1d:c0:ed;CM-QOS=1.1;CM-VER=3.0;
Thu Jan 01 00:05:11 1970	3	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=f8:2d:c0:9a:4a:8f;CMTS-MAC=00:42:5a:1d:c0:ed;CM-QOS=1.1;CM-VER=3.0;
Thu Jan 01 00:05:11 1970	3	No Ranging Response received - T3 time-out;CM-MAC=f8:2d:c0:9a:4a:8f;CMTS-MAC=00:42:5a:1d:c0:ed;CM-QOS=1.1;CM-VER=3.0;
Thu Jan 01 00:05:46 1970	3	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=f8:2d:c0:9a:4a:8f;CMTS-MAC=00:42:5a:1d:c0:ed;CM-QOS=1.1;CM-VER=3.0;
Thu Jan 01 00:05:46 1970	3	No Ranging Response received - T3 time-out;CM-MAC=f8:2d:c0:9a:4a:8f;CMTS-MAC=00:42:5a:1d:c0:ed;CM-QOS=1.1;CM-VER=3.0;
Thu Jan 01 00:06:28 1970	3	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=f8:2d:c0:9a:4a:8f;CMTS-MAC=00:42:5a:1d:c0:ed;CM-QOS=1.1;CM-VER=3.0;
Thu Jan 01 00:06:28 1970	3	No Ranging Response received - T3 time-out;CM-MAC=f8:2d:c0:9a:4a:8f;CMTS-MAC=00:42:5a:1d:c0:ed;CM-QOS=1.1;CM-VER=3.0;
Thu Jan 01 00:07:10 1970	3	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=f8:2d:c0:9a:4a:8f;CMTS-MAC=00:42:5a:1d:c0:ed;CM-QOS=1.1;CM-VER=3.0;
Thu Jan 01 00:07:10 1970	3	No Ranging Response received - T3 time-out;CM-MAC=f8:2d:c0:9a:4a:8f;CMTS-MAC=00:42:5a:1d:c0:ed;CM-QOS=1.1;CM-VER=3.0;
Thu Jan 01 00:07:51 1970	3	Unicast Ranging Received Abort Response - initializing MAC;CM-MAC=f8:2d:c0:9a:4a:8f;CMTS-MAC=00:42:5a:1d:c0:ed;CM-QOS=1.1;CM-VER=3.0;
Thu Jan 01 00:07:51 1970	3	No Ranging Response received - T3 time-out;CM-MAC=f8:2d:c0:9a:4a:8f;CMTS-MAC=00:42:5a:1d:c0:ed;CM-QOS=1.1;CM-VER=3.0;
Thu Jun 06 17:57:23 2019	6	TLV-11 - unrecognized OID;CM-MAC=f8:2d:c0:9a:4a:8f;CMTS-MAC=00:42:5a:1d:c0:ed;CM-QOS=1.1;CM-VER=3.0;

And here here are my current signal levels. 

Startup Procedure
Procedure	Status	Comment
Acquire Downstream Channel		Locked
Connectivity State	OK	Operational
Boot State	OK	Operational
Configuration File	OK
Security	Enabled	BPI+
DOCSIS Network Access Enabled	Allowed

Downstream Bonded Channels
Channel	Lock Status	Modulation	Channel ID	Frequency	Power	SNR	Corrected	Uncorrectables
1	Locked	256QAM	11	843.00 MHz	10.00 dBmV	38.98 dB	0	0
2	Locked	256QAM	1	783.00 MHz	10.50 dBmV	38.98 dB	0	0
3	Locked	256QAM	2	789.00 MHz	10.50 dBmV	38.98 dB	0	0
4	Locked	256QAM	3	795.00 MHz	10.40 dBmV	38.98 dB	0	0
5	Locked	256QAM	4	801.00 MHz	10.40 dBmV	38.98 dB	0	0
6	Locked	256QAM	9	831.00 MHz	10.10 dBmV	38.61 dB	0	0
7	Locked	256QAM	10	837.00 MHz	10.00 dBmV	38.98 dB	0	0
8	Locked	256QAM	12	849.00 MHz	9.70 dBmV	38.61 dB	0	0
9	Locked	256QAM	17	879.00 MHz	9.30 dBmV	38.98 dB	0	0
10	Locked	256QAM	18	885.00 MHz	9.10 dBmV	38.61 dB	8	0
11	Locked	256QAM	19	891.00 MHz	9.10 dBmV	38.98 dB	10	0
12	Locked	256QAM	20	897.00 MHz	9.00 dBmV	38.98 dB	0	0
13	Locked	256QAM	21	903.00 MHz	8.70 dBmV	38.98 dB	0	0
14	Locked	256QAM	22	909.00 MHz	8.60 dBmV	38.61 dB	0	0
15	Locked	256QAM	25	927.00 MHz	8.50 dBmV	38.61 dB	0	0
16	Locked	256QAM	26	933.00 MHz	8.30 dBmV	38.61 dB	0	0
17	Locked	256QAM	27	939.00 MHz	8.40 dBmV	38.61 dB	0	0
18	Locked	256QAM	28	945.00 MHz	7.90 dBmV	37.36 dB	0	0
19	Locked	256QAM	29	951.00 MHz	8.00 dBmV	38.61 dB	0	0
20	Locked	256QAM	30	957.00 MHz	7.40 dBmV	37.64 dB	0	0
21	Locked	256QAM	33	357.00 MHz	9.80 dBmV	38.61 dB	0	0
22	Locked	256QAM	34	363.00 MHz	9.40 dBmV	38.98 dB	0	0
23	Locked	256QAM	35	369.00 MHz	9.50 dBmV	38.98 dB	0	0
24	Locked	256QAM	36	375.00 MHz	9.70 dBmV	38.98 dB	0	0
25	Locked	256QAM	37	381.00 MHz	9.50 dBmV	39.20 dB	0	0
26	Locked	256QAM	38	387.00 MHz	9.40 dBmV	39.50 dB	0	0
27	Locked	256QAM	41	405.00 MHz	9.40 dBmV	38.90 dB	0	0
28	Locked	256QAM	42	411.00 MHz	9.40 dBmV	38.60 dB	0	0
29	Locked	256QAM	43	417.00 MHz	9.50 dBmV	39.20 dB	0	0
30	Locked	256QAM	44	423.00 MHz	9.40 dBmV	39.20 dB	0	0
31	Locked	256QAM	45	429.00 MHz	9.40 dBmV	39.20 dB	0	0
32	Locked	256QAM	46	435.00 MHz	9.30 dBmV	39.20 dB	0	0

Upstream Bonded Channels
Channel	Lock Status	US Channel Type	Channel ID	Symbol Rate	Frequency	Power
1	Locked	ATDMA	2	5120 kSym/s	23.90 MHz	39.00 dBmV
2	Locked	ATDMA	4	5120 kSym/s	36.70 MHz	41.00 dBmV
3	Locked	ATDMA	3	5120 kSym/s	30.30 MHz	39.00 dBmV
4	Locked	ATDMA	1	5120 kSym/s	17.40 MHz	39.00 dBmV

Current System Time: Thu Jun 06 18:17:42 2019