CM1000 Xfinity Download Speed

[Nexadud]

I switched out an xfinity router which gave me

    Download: 250 Mbps
    Upload    :   10 Mbps

For a CM1000. After the provisioning xfinity did everything worked pretty well after that, except for one thing. I've now been consistently getting very low download speeds.

So far I mentioned it to the xfinity representative that handled my provisioning and he said "give it 24 hours". I've also scheduled a technician to come in and upgrade the internet to gigabit internet, but I assumed that if I have low speeds now, likely changing to gigabit internet won't do anything to change the results. Also, from the Event Log I don't seem to be getting any T3 or T4 errors.

Here is the log

<tabindex=-1>Startup Procedure

Procedure	Status	Comment
Acquire Downstream Channel	633000000 Hz	Locked
Connectivity State	OK	Operational
Boot State	OK	Operational
Security	Enable	BPI+
IP Provisioning Mode	Honor MDD	IPv6 only

---

<tabindex=-1>Downstream Bonded Channels

Channel	Lock Status	Modulation	Channel ID	Frequency	Power	SNR / MER	Unerrored Codewords	Correctable Codewords	Uncorrectable Codewords
1	Locked	QAM256	24	633000000 Hz	3.9 dBmV	42.9 dB	82351651	0	0
2	Locked	QAM256	1	483000000 Hz	3.2 dBmV	42.9 dB	81136431	0	0
3	Locked	QAM256	2	489000000 Hz	3.3 dBmV	43.0 dB	81146147	0	0
4	Locked	QAM256	3	495000000 Hz	3.5 dBmV	43.3 dB	81154763	0	0
5	Locked	QAM256	4	507000000 Hz	3.7 dBmV	43.3 dB	81164101	0	0
6	Locked	QAM256	5	513000000 Hz	3.8 dBmV	43.4 dB	81173526	0	0
7	Locked	QAM256	6	519000000 Hz	3.9 dBmV	43.4 dB	81182574	0	0
8	Locked	QAM256	7	525000000 Hz	3.6 dBmV	43.2 dB	81191728	0	0
9	Locked	QAM256	8	531000000 Hz	3.9 dBmV	43.4 dB	81201358	0	0
10	Locked	QAM256	9	537000000 Hz	3.9 dBmV	43.4 dB	81210513	0	0
11	Locked	QAM256	10	543000000 Hz	3.1 dBmV	43.0 dB	81219474	0	0
12	Locked	QAM256	11	549000000 Hz	3.1 dBmV	43.0 dB	81228915	0	0
13	Locked	QAM256	12	561000000 Hz	3.5 dBmV	43.0 dB	81238331	0	0
14	Locked	QAM256	13	567000000 Hz	3.3 dBmV	43.0 dB	81247643	0	0
15	Locked	QAM256	14	573000000 Hz	3.7 dBmV	42.9 dB	81257401	0	0
16	Locked	QAM256	15	579000000 Hz	4.0 dBmV	43.1 dB	81266365	0	0
17	Locked	QAM256	16	585000000 Hz	3.6 dBmV	43.2 dB	81275812	0	0
18	Locked	QAM256	17	591000000 Hz	3.3 dBmV	43.1 dB	81284834	0	0
19	Locked	QAM256	18	597000000 Hz	3.6 dBmV	43.0 dB	81294260	0	0
20	Locked	QAM256	19	603000000 Hz	3.7 dBmV	43.1 dB	81303995	0	0
21	Locked	QAM256	20	609000000 Hz	3.3 dBmV	42.9 dB	81313299	0	0
22	Locked	QAM256	21	615000000 Hz	3.7 dBmV	42.9 dB	81321967	0	0
23	Locked	QAM256	22	621000000 Hz	3.5 dBmV	42.5 dB	81328679	0	0
24	Locked	QAM256	23	627000000 Hz	3.7 dBmV	42.9 dB	81333888	0	0
25	Not Locked	Unknown	0	0 Hz	0.0 dBmV	0.0 dB	0	0	0
26	Not Locked	Unknown	0	0 Hz	0.0 dBmV	0.0 dB	0	0	0
27	Not Locked	Unknown	0	0 Hz	0.0 dBmV	0.0 dB	0	0	0
28	Not Locked	Unknown	0	0 Hz	0.0 dBmV	0.0 dB	0	0	0
29	Not Locked	Unknown	0	0 Hz	0.0 dBmV	0.0 dB	0	0	0
30	Not Locked	Unknown	0	0 Hz	0.0 dBmV	0.0 dB	0	0	0
31	Not Locked	Unknown	0	0 Hz	0.0 dBmV	0.0 dB	0	0	0
32	Not Locked	Unknown	0	0 Hz	0.0 dBmV	0.0 dB	0	0	0

---

<tabindex=-1>Upstream Bonded Channels

Channel	Lock Status	Modulation	Channel ID	Frequency	Power
1	Locked	ATDMA	29	36500000 Hz	46.8 dBmV
2	Locked	ATDMA	30	30100000 Hz	48.0 dBmV
3	Locked	ATDMA	31	23700000 Hz	48.0 dBmV
4	Locked	ATDMA	32	17300000 Hz	48.5 dBmV
5	Not Locked	Unknown	0	0 Hz	0.0 dBmV
6	Not Locked	Unknown	0	0 Hz	0.0 dBmV
7	Not Locked	Unknown	0	0 Hz	0.0 dBmV
8	Not Locked	Unknown	0	0 Hz	0.0 dBmV

---

<tabindex=-1>Downstream OFDM Channels

Channel	Lock Status	Modulation / Profile ID	Channel ID	Frequency	Power	SNR / MER	Active Subcarrier Number Range	Unerrored Codewords	Correctable Codewords	Uncorrectable Codewords
1	Locked	0, 1	25	693000000 Hz	4.0 dBmV	40.5 dB	1108 ~ 2987	4736430	196668	0
2	Not Locked	0	0	0 Hz	0.2 dBmV	0.0 dB	0 ~ 4095	0	0	0

---

<tabindex=-1>Upstream OFDMA Channels

Channel	Lock Status	Modulation / Profile ID	Channel ID	Frequency	Power
1	Not Locked	Unknown	0	0 Hz	0 dBmV
2	Not Locked	Unknown	0	0 Hz	0 dBmV

[DarrenM]

This couple be a simple mix up I have seen it happen many times. I would contact the ISP and have them check your account they could of added your CM1000 and not removed the old modem from your account if so the CM1000 gets assigned a slow internet speed where the old modem has the 250mbps connection still on it.

DarrenM