Poor Signal Strength and Low Data Rate

[spark1]

Signal has been gradually getting worse since upgrade to 200 Mbps. Higher cost, worse service. Data Collected 7:10pm May 11, 2018 over Ethernet cable,  northwest Raleigh, NC
Speedtest 78.9 download.  Upload 5.0 MBPS

Status ConnectionThis page displays information on the status of the cable modem's HFC and IP network connectivity.

Startup ProcedureProcedureStatusComment

Acquire Downstream Channel	645000000 Hz	Locked
Connectivity State	OK	Operational
Boot State	OK	Operational
Configuration File	OK
Security	Enabled	BPI+

Downstream Bonded ChannelsChannel Lock Status Modulation Channel ID Frequency Power SNR Correctables Uncorrectables

1	Locked	QAM256	32	645000000 Hz	-7.6 dBmV	40.4 dBmV	418	500
2	Locked	QAM256	22	585000000 Hz	-7.0 dBmV	40.8 dBmV	313	575
3	Locked	QAM256	25	603000000 Hz	-6.7 dBmV	40.8 dBmV	350	560
4	Locked	QAM256	26	609000000 Hz	-6.8 dBmV	40.8 dBmV	358	528
5	Locked	QAM256	28	621000000 Hz	-6.9 dBmV	40.9 dBmV	381	469
6	Locked	QAM256	29	627000000 Hz	-7.1 dBmV	40.8 dBmV	341	439
7	Locked	QAM256	31	639000000 Hz	-7.7 dBmV	40.3 dBmV	375	453
8	Locked	QAM256	18	561000000 Hz	-7.4 dBmV	40.7 dBmV	361	483

Total Correctables Total Uncorrectables

2897

4007

Upstream Bonded ChannelsChannel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power

1	Locked	ATDMA	3	5120 Ksym/sec	30400000 Hz	42.0 dBmV
2	Locked	ATDMA	2	5120 Ksym/sec	24000000 Hz	41.0 dBmV
3	Locked	TDMA	1	2560 Ksym/sec	19200000 Hz	40.8 dBmV
4	Locked	ATDMA	4	5120 Ksym/sec	36800000 Hz	44.3 dBmV

CM IP AddressCM IP Address

fe80::21c:7bff:fee3:8d8f/64

[karlbeckman]

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@spark1 wrote:

Signal has been gradually getting worse since upgrade to 200 Mbps. Higher cost, worse service. Data Collected 7:10pm May 11, 2018 over Ethernet cable,  northwest Raleigh, NC
Speedtest 78.9 download.  Upload 5.0 MBPS

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If you want assistance from the forum contributor volunteers, you've got to give us a little bit to work with here! 

We need to know the make and model of your present modem, please? 

When you increased your speed to 200 Mbps, was your modem also changed? 

What was your previous speed package in Mbps, and what model modem did you have before?

[spark1]

It is a Zoom 5341J DOCSIS3 compliant.  Modem is rated at more than 343 MBPS .

Previously we had 100 MBPS from Spectrum.

We were told to turn everything off and shut it down--a hard reboot, then bring it back up--not change any settings on the modem.

Thank you.

[karlbeckman · Accepted solution]

I personally use that model of modem for my home internet sevice.  Spectrum will only program it for speeds up to 100 Mbps, not any higher tiers like the 200 Mbps to which you thought you were being upgraded. 

For anything over 100 you will need to replace it with a model that appears on Spectrum's list of modems approved for 200 Mbps, or rent one provided by Spectrum.  Meanwhile I suggest you contact Spectrum about issuing you a credit for the price difference.  This sales practice is what got them into so much trouble in New York State.