cancel
Showing results for 
Search instead for 
Did you mean: 

How do I get lower latency/ping?

josh94
Superfast

The ping has got LOTS better since upgrading to gig1, but it still is high compared to many, many others on here, some on Hub3's... my connection has intermittent low packet loss and the average ping is all over the place.

https://www.thinkbroadband.com/broadband/monitoring/quality/share/06a194e09128090297e5466a95fbc272ef... 

Can someone advise if this is acceptable and I am just being picky on it? My upload is also pathetic 

1 ACCEPTED SOLUTION

Accepted Solutions

Andrew-G
Alessandro Volta

@josh94 wrote:

Well your saying my levels are good and someone else says they wont be helping, what's your thoughts? I always have high and erratic ping, and my upload fluctuates heavily when no usage is going on, down is not that effected but may just be my areas congested?


The levels are crap, trust me.  For starters, the accepted range of DOCSIS power levels on VM's network is up to +10 dBmV, you have multiple channels at or above that.  High power levels are of themselves an indication that the connection is noisy, although within permitted limits that would not matter if they were less than 10, and there were no other symptoms.  Next up, the range of power levels is about 7.3 dBmV from lowest to highest, that's going to cause problems on its own - we frequently see problems when the range exceeds 4.5 dBmV.  Then we have to consider that ideally power levels should be flat or slightly declining as frequency rises - but yours are going up steeply with frequency.  That's an incorrectly set or faulty street cabinet amplifier resulting in incorrect "slope".  There's also uncorrectable errors showing on the DOCSIS 3.1 channel, that's always a bad sign.  Normally I'd expect to also see significant post-RS (uncorrectable) errors on the DOCSIS 3.0 channels.  You'll see values of zero there, but that's not because there aren't any, it's because the Hub 4 firmware is a pile of steaming **** and shows zeroes rather than actual error counts.  I can tell the two columns of zeroes are nonsense because a DOCSIS connection ALWAYS racks up pre-RS errors even if working well.  The pre-RS errors are corrected, they don't matter, but their absence confirms that your hub is running the faulty firmware (like most other Hub 4s).   

So all things considered, you've got a shonky connection, that either an area fault or it's your unique connection, either needs a technician. 

In honesty, VM is not the network for gamers.  When it's working well it's still marginally inferior to the latency of an Openreach connection.  When things go wrong then cable technology is erratic and difficult to troubleshoot.  And then you have VM's world famous technical support.  In return for that, you can download games faster than Openreach, you just can't play them very well.  When you're gaming, it uses less than 10 Mbps up and down.   

See where this Helpful Answer was posted

34 REPLIES 34

josh94
Superfast

The upload has got a lot worse throughout the day, is there anyone that can check how congested my area is? I got a text earlier saying that they are doing maintenance in my area so I am hoping that is going to sort these issues out... 

3.0 Downstream channels

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

2533100000010.30000340.946209QAM25625
11390000005.09999838.605377QAM2561
21470000005.30000338.605377QAM2562
31550000005.19999738.605377QAM2563
41630000005.30000338.983261QAM2564
51710000005.50000038.983261QAM2565
61790000005.90000238.605377QAM2566
71870000006.19999738.983261QAM2567
81950000006.40000238.983261QAM2568
92030000006.50000038.605377QAM2569
102110000006.69999738.983261QAM25610
112190000007.00000038.983261QAM25611
122270000007.09999840.366287QAM25612
132350000007.19999738.983261QAM25613
142430000007.30000340.366287QAM25614
152510000007.09999838.983261QAM25615
162590000006.80000338.983261QAM25616
172670000006.69999740.366287QAM25617
182750000007.59999838.983261QAM25618
192830000008.69999738.983261QAM25619
202910000009.90000240.366287QAM25620
2129900000010.69999740.366287QAM25621
2230700000010.30000340.366287QAM25622
233150000009.80000340.946209QAM25623
243230000009.69999740.366287QAM25624
2633900000011.00000040.946209QAM25626
2734700000012.00000040.946209QAM25627
2835500000012.40000240.366287QAM25628
2936300000012.19999740.946209QAM25629
3037100000011.40000240.366287QAM25630
3137900000010.90000240.366287QAM25631



3.0 Downstream channels

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

25Locked40.94620900
1Locked38.60537700
2Locked38.60537700
3Locked38.60537700
4Locked38.98326100
5Locked38.98326100
6Locked38.60537700
7Locked38.98326100
8Locked38.98326100
9Locked38.60537700
10Locked38.98326100
11Locked38.98326100
12Locked40.36628700
13Locked38.98326100
14Locked40.36628700
15Locked38.98326100
16Locked38.98326100
17Locked40.36628700
18Locked38.98326100
19Locked38.98326100
20Locked40.36628700
21Locked40.36628700
22Locked40.36628700
23Locked40.94620900
24Locked40.36628700
26Locked40.94620900
27Locked40.94620900
28Locked40.36628700
29Locked40.94620900
30Locked40.36628700
31Locked40.36628700



3.1 Downstream channels

Channel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz)
39964K1880QAM4096424


3.1 Downstream channels

Channel ID Lock Status RxMER Data (dB) PLC Power (dBmV) Correcteds (Active Profile) Uncorrectables (Active Profile)
39Locked4311.2291553137268

3.0 Upstream channels

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

13940000046.5205995120 KSym/sec64QAM2
23260000046.5205995120 KSym/sec64QAM3
32580000047.0205995120 KSym/sec64QAM4
44620000046.2705995120 KSym/sec64QAM1



3.0 Upstream channels

Channel Channel Type T1 Timeouts T2 Timeouts T3 Timeouts T4 Timeouts

1US_TYPE_STDMA0010
2US_TYPE_STDMA0000
3US_TYPE_STDMA0000
4US_TYPE_STDMA0000

 

General Configuration

Network access
true
Maximum Number of CPEs
1
Baseline Privacy
true
DOCSIS Mode
3.1
Config file
cmreg-vmdg640-bbt076+voc-b.cm



Primary Downstream Service Flow

SFID
106578
Max Traffic Rate
1200000450
Max Traffic Burst
42600
Min Traffic Rate
0



Primary Upstream Service Flow

SFID
106577
Max Traffic Rate
55000270
Max Traffic Burst
42600
Min Traffic Rate
0
Max Concatenated Burst
42600
Scheduling Type
bestEffort

Andrew-G
Alessandro Volta

There's other factors that can drive poor latency, but you certainly won't be helped by your downstream power levels, which have too wide a range, some are too high, and overall they slope the wrong way.  I'll mark this for the forum staff to take a look and advise.  As and when that's been sorted, see how latency is, and we can see if there's other factors involved, and take it from there.

Zach_R
Forum Team
Forum Team

Hi @josh94,

Thank you for your posts. I'm really sorry to hear you're having a little bit of trouble with your connection.

Using the details you provided when joining the forums, I've taken a look at your line and I can't see any problems there to explain what you seem to be experiencing.

Would you mind clarifying any diagnostics and troubleshooting you've done thus far in an effort to remedy this?

Thanks,
 


Zach - Forum Team
New around here? To find out more about the Community Forums, take a look at our FAQs!


Well your saying my levels are good and someone else says they wont be helping, what's your thoughts? I always have high and erratic ping, and my upload fluctuates heavily when no usage is going on, down is not that effected but may just be my areas congested?

legacy1
Alessandro Volta

If you do a:

ping -t 194.168.4.100

and a speed test when it hits upload does your ping spike?

---------------------------------------------------------------

What am I pinging? I am in modem mode, I presume you are pinging the DNS server when its in router mode so 192.168.100.1 should suffice that test?

Every line was like this:

Reply from 192.168.100.1: bytes=32 time=1ms TTL=63