comcast cant see my modem Arris sb8200 should i be concern?

[kyorishin]

coming from a 300mb plan i recently updated to a gigabit plan and the comcast diag said i should upgrade my modem

original modem was Motorola SB6141

just picked up an Arris SB8200

 Atronix CMCDT2106T

tried to do the activation on xfinity.com/activate but it could not see it, was able to see the old modem fine. not sure if it would make a differece but from the wall inlet  i original had this splitter in line to modem when i also had TV but have since removed from account and only have internet now

called in to a rep and they manually updated my modem on my account for me and got the internet working but in the app (xfinity my account) and on the website it doesnt see my modem as connected.

should i be concern? am i missing out on anything if my modem isnt showing in their system?

this is my status the day after getting it working

Startup Procedure
Procedure	Status	Comment
Acquire Downstream Channel	513000000 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
9	Locked	QAM256	513000000 Hz	-2.9 dBmV	42.9 dB	2	0
5	Locked	QAM256	483000000 Hz	-2.9 dBmV	42.9 dB	6	0
6	Locked	QAM256	489000000 Hz	-3.3 dBmV	42.7 dB	13	0
7	Locked	QAM256	495000000 Hz	-3.6 dBmV	42.5 dB	9	0
8	Locked	QAM256	507000000 Hz	-3.4 dBmV	42.7 dB	5	0
10	Locked	QAM256	519000000 Hz	-3.1 dBmV	42.9 dB	6	0
11	Locked	QAM256	525000000 Hz	-3.4 dBmV	42.5 dB	5	0
12	Locked	QAM256	531000000 Hz	-3.4 dBmV	42.6 dB	1	0
13	Locked	QAM256	543000000 Hz	-2.7 dBmV	43.0 dB	0	0
14	Locked	QAM256	549000000 Hz	-2.8 dBmV	42.8 dB	1	0
15	Locked	QAM256	555000000 Hz	-3.4 dBmV	42.7 dB	1	0
16	Locked	QAM256	561000000 Hz	-3.3 dBmV	42.7 dB	0	0
17	Locked	QAM256	567000000 Hz	-3.4 dBmV	42.7 dB	0	0
18	Locked	QAM256	573000000 Hz	-3.4 dBmV	42.8 dB	0	0
19	Locked	QAM256	579000000 Hz	-2.9 dBmV	42.8 dB	0	0
20	Locked	QAM256	585000000 Hz	-2.8 dBmV	42.8 dB	0	0
21	Locked	QAM256	591000000 Hz	-2.9 dBmV	42.8 dB	0	0
22	Locked	QAM256	597000000 Hz	-3.3 dBmV	42.5 dB	0	0
23	Locked	QAM256	603000000 Hz	-3.1 dBmV	42.3 dB	0	0
24	Locked	QAM256	609000000 Hz	-2.9 dBmV	42.6 dB	0	0
25	Locked	QAM256	615000000 Hz	-2.8 dBmV	42.6 dB	0	0
26	Locked	QAM256	621000000 Hz	-2.8 dBmV	42.5 dB	0	0
27	Locked	QAM256	627000000 Hz	-2.8 dBmV	42.5 dB	0	0
28	Locked	QAM256	633000000 Hz	-3.0 dBmV	42.5 dB	0	0
29	Locked	QAM256	639000000 Hz	-3.1 dBmV	42.5 dB	0	0
30	Locked	QAM256	645000000 Hz	-2.7 dBmV	42.7 dB	0	0
31	Locked	QAM256	651000000 Hz	-2.3 dBmV	42.7 dB	0	0
32	Locked	QAM256	657000000 Hz	-2.5 dBmV	42.8 dB	0	0
33	Locked	QAM256	663000000 Hz	-2.7 dBmV	42.6 dB	0	0
34	Locked	QAM256	669000000 Hz	-3.2 dBmV	42.4 dB	0	0
35	Locked	QAM256	675000000 Hz	-3.1 dBmV	41.1 dB	0	0
36	Locked	QAM256	681000000 Hz	-3.0 dBmV	42.4 dB	0	0
159	Locked	Other	722000000 Hz	-1.7 dBmV	41.2 dB	946	0

Upstream Bonded Channels
Channel	Channel ID	Lock Status	US Channel Type	Frequency	Width	Power
1	4	Locked	SC-QAM Upstream	23700000 Hz	6400000 Hz	53.0 dBmV
2	1	Locked	SC-QAM Upstream	30100000 Hz	6400000 Hz	53.0 dBmV
3	2	Locked	SC-QAM Upstream	36500000 Hz	6400000 Hz	53.0 dBmV
4	3	Locked	SC-QAM Upstream	17300000 Hz	6400000 Hz	53.0 dBmV

[EG]

The upstream power is too high / out of spec. That can cause random disconnects, spontaneous re-booting of the modem, speed, packet loss, latency problems, and the un-bonding of channels.

In a self troubleshooting effort to try to obtain better connectivity / more wiggle room, check to see if there are there any excess/unneeded coax cable splitters in the line leading to the modem that can be eliminated/re-configured. Any splitters that remain should be high quality and cable rated for 5-1002 MHz, bi-directional, and no gold colored garbage types like GE, RadioShack, RCA, Philips, Leviton, Magnavox, and Rocketfish from big box stores like Home Depot, Lowes, Target, Wal-Mart etc. Splitters should be swapped with known to be good / new ones to test

If there aren't any unneeded splitters that can be eliminated and if your coax wiring setup can't be reconfigured so that there is a single two way splitter connected directly off of the drop from the street/pole with one port feeding the modem and the other port feeding the rest of the house/equipment with additional splits as needed, and you've checked all the wiring and fittings for integrity and tightness and refresh them by taking them apart then check for and clean off any corrosion / oxidation on the center wire and put them back together again, then perhaps it's best to book a tech visit to investigate and correct.