Arris SB8200 / Uncorrectables, occasionally lost packets

Howdy,

I'm running an Arris SB8200 and running into some packet loss problems that I don't believe is within my local network.

There's no splitters on property. There's one coaxial joiner under the house and another one outside that's grounding the coaxial on my property.

I'm looking for advice and/or I'd like to see about getting a technician to review outside my property going to it to see if there's any problems on the node (?).

Is there any suggested tools I could buy to test the coaxial cable?

I see these all the time in the Event Log:

7/14/2020 23:02	2436694061	5	"Dynamic Range Window violation"
07/14/2020 23:02	82001100	5	"RNG-RSP CCAP Commanded Power Exceeds Value Corresponding to the Top of the DRW;CM-MAC=14:c0:3e:02:24:f1;CMTS-MAC=00:01:5c:a8:e0:62;CM-QOS=1.1;CM-VER=3.1;"
07/14/2020 23:02	82000500	3	"Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=14:c0:3e:02:24:f1;CMTS-MAC=00:01:5c:a8:e0:62;CM-QOS=1.1;CM-VER=3.1;"
07/14/2020 23:02	2436694061	5	"Dynamic Range Window violation"
07/14/2020 23:02	82001200	5	"RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=14:c0:3e:02:24:f1;CMTS-MAC=00:01:5c:a8:e0:62;CM-QOS=1.1;CM-VER=3.1;"
07/14/2020 23:02	2436694061	5	"Dynamic Range Window violation"
07/14/2020 23:02	82001200	5	"RNG-RSP CCAP Commanded Power in Excess of 6 dB Below the Value Corresponding to the Top of the DRW;CM-MAC=14:c0:3e:02:24:f1;CMTS-MAC=00:01:5c:a8:e0:62;CM-QOS=1.1;CM-VER=3.1;"
07/14/2020 23:02	2436694061	5	"Dynamic Range Window violation"

Channel ID	Lock Status	Modulation	Frequency	Power	SNR/MER	Corrected	Uncorrectables
9	Locked	QAM256	507000000 Hz	1.8 dBmV	38.9 dB	237	564
1	Locked	QAM256	459000000 Hz	2.4 dBmV	38.8 dB	290	662
2	Locked	QAM256	465000000 Hz	2.5 dBmV	39.1 dB	327	715
3	Locked	QAM256	471000000 Hz	2.5 dBmV	39.0 dB	279	678
4	Locked	QAM256	477000000 Hz	2.5 dBmV	39.0 dB	251	624
5	Locked	QAM256	483000000 Hz	2.6 dBmV	39.1 dB	271	625
6	Locked	QAM256	489000000 Hz	2.2 dBmV	39.3 dB	297	581
7	Locked	QAM256	495000000 Hz	2.2 dBmV	39.3 dB	246	603
8	Locked	QAM256	501000000 Hz	2.1 dBmV	39.2 dB	242	548
10	Locked	QAM256	513000000 Hz	1.7 dBmV	38.8 dB	221	627
11	Locked	QAM256	519000000 Hz	1.7 dBmV	38.8 dB	247	589
12	Locked	QAM256	525000000 Hz	1.5 dBmV	38.4 dB	284	459
13	Locked	QAM256	531000000 Hz	1.0 dBmV	38.3 dB	251	462
14	Locked	QAM256	537000000 Hz	0.9 dBmV	38.2 dB	312	481
15	Locked	QAM256	543000000 Hz	3.3 dBmV	38.6 dB	258	537
16	Locked	QAM256	549000000 Hz	3.0 dBmV	38.6 dB	214	444
17	Locked	QAM256	555000000 Hz	2.9 dBmV	38.6 dB	262	472
18	Locked	QAM256	561000000 Hz	2.8 dBmV	39.0 dB	170	415
19	Locked	QAM256	567000000 Hz	2.7 dBmV	39.0 dB	152	474
20	Locked	QAM256	573000000 Hz	2.6 dBmV	38.9 dB	193	428
21	Locked	QAM256	579000000 Hz	2.6 dBmV	38.8 dB	165	431
22	Locked	QAM256	585000000 Hz	2.6 dBmV	38.7 dB	155	461
23	Locked	QAM256	591000000 Hz	2.6 dBmV	38.6 dB	142	406
24	Locked	QAM256	597000000 Hz	2.4 dBmV	38.6 dB	156	399
25	Locked	QAM256	603000000 Hz	2.5 dBmV	38.4 dB	159	403
26	Locked	QAM256	609000000 Hz	2.3 dBmV	38.6 dB	171	362
27	Locked	QAM256	615000000 Hz	2.3 dBmV	38.6 dB	152	403
37	Locked	Other	690000000 Hz	1.0 dBmV	35.0 dB	1633985900	0
38	Not Locked	QAM256	0 Hz	0.0 dBmV	39.1 dB	420	771
39	Locked	QAM256	435000000 Hz	1.7 dBmV	39.1 dB	504	724
40	Locked	QAM256	441000000 Hz	1.8 dBmV	39.1 dB	392	760
41	Locked	QAM256	447000000 Hz	1.9 dBmV	39.0 dB	332	737

Upstream Bonded Channels
Channel	Channel ID	Lock Status	US Channel Type	Frequency	Width	Power
1	4	Locked	SC-QAM Upstream	16600000 Hz	6400000 Hz	42.0 dBmV
2	1	Locked	SC-QAM Upstream	35800000 Hz	6400000 Hz	42.0 dBmV
3	2	Locked	SC-QAM Upstream	29400000 Hz	6400000 Hz	42.0 dBmV
4	3	Locked	SC-QAM Upstream	23000000 Hz	6400000 Hz	42.0 dBmV

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Zachet

Arris SB8200 / Uncorrectables, occasionally lost packets

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