Hi, I have Xfinitys Gig internet speed plan and recently purchased a CAX30S. The cable connection is poor and I've tried swapping out coax cables. According to the downstream status, it says Downstream SNR and power levels are poor "Downstream power is poor (-9.9 dBmV). The recommended level is between -10dBmV to 10dBmV." I'm not sure if there's anything I can do before I contact my ISP.

Below are the diagnostic results:

Startup Procedure

Procedure	Status	Comment
Acquire Downstream Channel	531000000 Hz	Locked
Connectivity State	OK	Operational
Boot State	OK	Operational
Security	Enabled	BPI+
IP Provisioning Mode	Honor MDD	IPv6 only

Downstream Bonded Channels

Channel	Lock Status	Modulation	Channel ID	Frequency	Power	SNR	Correctables	Uncorrectabables
1	Locked	256 QAM	20	531000000 Hz	-8.5 dBmV	32.5 dB	0	0
2	Locked	256 QAM	13	489000000 Hz	-8.6 dBmV	41.3 dB	0	0
3	Locked	256 QAM	14	495000000 Hz	-8.8 dBmV	42.3 dB	0	0
4	Locked	256 QAM	15	501000000 Hz	-8.7 dBmV	42.4 dB	0	0
5	Locked	256 QAM	16	507000000 Hz	-8.6 dBmV	42.4 dB	0	0
6	Locked	256 QAM	17	513000000 Hz	-8.5 dBmV	42.4 dB	0	0
7	Locked	256 QAM	18	519000000 Hz	-8.9 dBmV	41.6 dB	0	0
8	Locked	256 QAM	19	525000000 Hz	-8.8 dBmV	38.0 dB	0	0
9	Locked	256 QAM	21	537000000 Hz	-8.5 dBmV	38.3 dB	0	0
10	Locked	256 QAM	22	543000000 Hz	-8.9 dBmV	41.9 dB	0	0
11	Locked	256 QAM	23	549000000 Hz	-9.2 dBmV	41.8 dB	0	0
12	Locked	256 QAM	24	555000000 Hz	-8.9 dBmV	40.7 dB	0	0
13	Locked	256 QAM	25	561000000 Hz	-8.6 dBmV	41.4 dB	0	0
14	Locked	256 QAM	26	567000000 Hz	-8.7 dBmV	40.9 dB	0	0
15	Locked	256 QAM	27	573000000 Hz	-9.3 dBmV	35.9 dB	0	0
16	Locked	256 QAM	28	579000000 Hz	-9.2 dBmV	39.6 dB	0	0
17	Locked	256 QAM	29	585000000 Hz	-8.9 dBmV	41.9 dB	0	0
18	Locked	256 QAM	30	591000000 Hz	-8.8 dBmV	41.7 dB	0	0
19	Locked	256 QAM	31	597000000 Hz	-9.3 dBmV	41.4 dB	0	0
20	Locked	256 QAM	32	603000000 Hz	-9.5 dBmV	26.5 dB	7328154	193792
21	Locked	256 QAM	33	609000000 Hz	-9.2 dBmV	31.8 dB	0	0
22	Locked	256 QAM	34	615000000 Hz	-8.8 dBmV	41.9 dB	0	0
23	Locked	256 QAM	35	621000000 Hz	-9.0 dBmV	41.5 dB	0	0
24	Locked	256 QAM	36	627000000 Hz	-9.2 dBmV	41.5 dB	0	0
25	Locked	256 QAM	37	633000000 Hz	-9.2 dBmV	41.4 dB	0	0
26	Locked	256 QAM	38	639000000 Hz	-8.8 dBmV	41.7 dB	0	0
27	Locked	256 QAM	39	645000000 Hz	-9.1 dBmV	41.7 dB	0	0
28	Locked	256 QAM	40	651000000 Hz	-9.3 dBmV	41.6 dB	0	0
29	Locked	256 QAM	41	657000000 Hz	-9.8 dBmV	41.2 dB	0	0
30	Locked	256 QAM	42	663000000 Hz	-9.1 dBmV	41.7 dB	0	0
31	Locked	256 QAM	43	669000000 Hz	-9.3 dBmV	41.5 dB	0	0
32	Locked	256 QAM	44	675000000 Hz	-9.2 dBmV	41.2 dB	0	0

Upstream Bonded Channels

Channel	Lock Status	US Channel Type	Channel ID	Symbol Rate	Frequency	Power
1	Locked	ATDMA	1	5120 Ksym/sec	16400000 Hz	43.3 dBmV
2	Locked	ATDMA	2	5120 Ksym/sec	22800000 Hz	43.8 dBmV
3	Locked	ATDMA	3	5120 Ksym/sec	29200000 Hz	44.3 dBmV
4	Locked	ATDMA	4	5120 Ksym/sec	35600000 Hz	44.8 dBmV
5	Not Locked	Unknown	0	0 Ksym/sec	0 Hz	0 dBmV
6	Not Locked	Unknown	0	0 Ksym/sec	0 Hz	0 dBmV
7	Not Locked	Unknown	0	0 Ksym/sec	0 Hz	0 dBmV
8	Not Locked	Unknown	0	0 Ksym/sec	0 Hz	0 dBmV

Downstream OFDM Channels

Channel	Channel ID	Frequency	Power	SNR/MER	Active Subcarrier Number Range	Total Codewords	Uncorrectable Codewords
1	193	957000000 Hz	-12.2 dBmV	38.3 dB	148 ~ 3947	1530858	0
2	0	0 Hz	0 dBmV	0 dB	0 ~ 0	0	0

Upstream OFDMA Channels

Channel	UpstreamIsMuted	Ranging Status	Subcarrier Zero Frequency	Active Subcarrier Number Range	Symbols Per Frame	Tx Power
1		Other	0 MHz	0 ~ 0	0	0 dBmV
2		Other	0 MHz	0 ~ 0	0	0 dBmV

Forum Discussion

CAX30 Poor Cable Connection Status