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gsmonkey
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Message 1 of 17
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Slow 1Gig speeds

I have a new Hub 4 on the 1gig contract.  Connected in Modem mode to Netgear Orbi.  Over the last year have had consistent results on Orbi speed test of 600Mpbs down, 30Mbps up, which was ok for M600.  Now I have upgraded to 1gig, the upload speed has increased to 50Mbps, but the download has stayed at 600-700mbps, below the minimum and far below the average quoted. 

Virginmedia support has directed me here.  Any ideas?

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gsmonkey
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Message 2 of 17
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Re: Slow 1Gig speeds

Data:

3.0 Downstream channels

Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID

25330750000-2.838.6QAM25625
1138750000-1.439QAM2561
2146750000-1.638.6QAM2562
3154750000-1.538.6QAM2563
4162750000-1.839QAM2564
5170750000-2.139QAM2565
6178750000-2.340.4QAM2566
7186750000-2.440.4QAM2567
8194750000-2.440.4QAM2568
9202750000-2.439QAM2569
10210750000-2.540.4QAM25610
11218750000-2.640.4QAM25611
12226750000-2.740.4QAM25612
13234750000-2.940.4QAM25613
14242750000-3.140.4QAM25614
15250750000-3.139QAM25615
16258750000-339QAM25616
17266750000-3.239QAM25617
18274750000-3.439QAM25618
19282750000-438.6QAM25619
20290750000-4.239QAM25620
21298750000-4.138.6QAM25621
22306750000-3.639QAM25622
23314750000-3.239QAM25623
24322750000-2.939QAM25624
26370750000-3.140.4QAM25626
27378750000-2.939QAM25627
28386750000-2.840.4QAM25628
29394750000-340.4QAM25629
30402750000-3.140.4QAM25630
31410750000-3.240.4QAM25631



 
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gsmonkey
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Message 3 of 17
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Re: Slow 1Gig speeds

3.0 Downstream channels

Channel Lock Status RxMER (dB) Pre RS Errors Post RS Errors

25Locked38.60537700
1Locked38.98326100
2Locked38.60537700
3Locked38.60537700
4Locked38.98326100
5Locked38.98326100
6Locked40.36628700
7Locked40.36628700
8Locked40.36628700
9Locked38.98326100
10Locked40.36628700
11Locked40.36628700
12Locked40.36628700
13Locked40.36628700
14Locked40.36628700
15Locked38.98326100
16Locked38.98326100
17Locked38.98326100
18Locked38.98326100
19Locked38.60537700
20Locked38.98326100
21Locked38.60537700
22Locked38.98326100
23Locked38.98326100
24Locked38.98326100
26Locked40.36628700
27Locked38.98326100
28Locked40.36628700
29Locked40.36628700
30Locked40.36628700
31Locked40.36628700
 
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gsmonkey
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Re: Slow 1Gig speeds

3.1 Downstream channels

Channel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz)

159864K1680QAM4096424



3.1 Downstream channels

Channel ID Lock Status RxMER Data (dB) PLC Power (dBmV) Correcteds (Active Profile) Uncorrectables (Active Profile)

159Locked42-2.63848410440
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gsmonkey
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Re: Slow 1Gig speeds

3.0 Upstream channels

Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID

12580000037.85120 KSym/sec32QAM5
23260000038.85120 KSym/sec64QAM4
33940000040.35120 KSym/sec64QAM3
44620000040.85120 KSym/sec64QAM2



3.0 Upstream channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1US_TYPE_STDMA0030
2US_TYPE_STDMA0000
3US_TYPE_STDMA0000
4US_TYPE_STDMA0000

 

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gsmonkey
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Message 6 of 17
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Re: Slow 1Gig speeds

Network Log

Time Priority Description

Sat 16/01/2021 11:38:145MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sat 16/01/2021 11:38:143Registration RSP rejected unspecified reason;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sat 16/01/2021 11:38:144T6 Timeout and retries exceeded;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sat 16/01/2021 11:38:153REG RSP not received;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sat 16/01/2021 11:39:085MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sat 16/01/2021 11:39:236SW Download INIT - Via Config file ncxv9873254k;fg87dsfd;kfo
Sat 16/01/2021 11:40:366SW download Successful - Via Config file
Sat 16/01/2021 11:43:065MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sat 16/01/2021 12:14:234DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sat 16/01/2021 12:14:236DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sat 16/01/2021 12:56:425MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sat 16/01/2021 13:32:144DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sat 16/01/2021 13:32:146DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sun 17/01/2021 15:15:523No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 18/01/2021 12:44:293Ranging Request Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 18/01/2021 12:44:293Unicast Maintenance Ranging attempted - No response - Retries exhausted;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 18/01/2021 12:44:293No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 18/01/2021 14:09:133SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 18/01/2021 14:09:166CM-STATUS message sent. Event Type Code: 21; Chan ID: 159; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 18/01/2021 14:09:185Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 18/01/2021 14:09:243No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 18/01/2021 14:09:346CM-STATUS message sent. Event Type Code: 4; Chan ID: 13; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: N/A.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Mon 18/01/2021 14:14:403No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Wed 20/01/2021 00:00:096SW Download INIT - Via NMS
Wed 20/01/2021 00:01:466SW download Successful - Via NMS
Wed 20/01/2021 00:04:245MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 21/01/2021 18:48:124DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 21/01/2021 18:48:126DHCP Renew - lease parameters tftp file-cmreg-vmdg640-bbt076-b.cm modified;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sat 23/01/2021 18:21:315MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Sat 23/01/2021 21:08:063No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
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carl_pearce
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Message 7 of 17
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Re: Slow 1Gig speeds

Downstream power levels, including DOCSIS 3.1, are a touch low, but in spec.

One of your Upstream channels is out of spec on QAM, which could mean a noisy line.

What devices are you testing, wired and wireless?

Keep in mind the max real world over gigabit ethernet is 940Mbps.

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gsmonkey
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Message 8 of 17
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Re: Slow 1Gig speeds

Netgear Orbi router has built in Speedtest.net service and tests speed from the Hub4. I get lower WiFi speeds, but I understand that’s the limitations of a noisy environment. 

I’d expect the speeds at the hub in Modem mode to be better than 600Mbps. 

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carl_pearce
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Message 9 of 17
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Re: Slow 1Gig speeds


@gsmonkey wrote:

Netgear Orbi router has built in Speedtest.net service and tests speed from the Hub4. I get lower WiFi speeds, but I understand that’s the limitations of a noisy environment. 

I’d expect the speeds at the hub in Modem mode to be better than 600Mbps. 


Have you disabled features like QOS?

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gsmonkey
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Message 10 of 17
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Re: Slow 1Gig speeds

There are no QOS options available on the router. 

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