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Yejin
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Huge packet loss/Latency increase before midnight

Hello!

I've been having a huge increase in ping/latency to many games and online services (For example, Final Fantasy XIV to 204.2.229.11 is 200-220ms when usually its a stable 150) and also constant packet loss reporting from games that allow it (Apex legends "twitches" when a packet is dropped, it is constant and the warning regularly appears). These problems stop the around midnight to 1AM, and start again around 5:30am from what I can tell. Pings to 1.1.1.1 turn back between 12 and 22ms during the day and consistent 11-12 during the night. Here is the 24 hours prior to me making this thread on the Broadband Quality Monitor.

https://www.thinkbroadband.com/broadband/monitoring/quality/share/6878f9e476179d2bac6a7c92983fd592f7...

 

I am on virgins Gigabit network if that helps at all. This was not a problem Until about 10 days ago.

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Icantcrabhere
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Re: Huge packet loss/Latency increase before midnight

Your graph is pretty much perfect, other than the odd little spike - but that doesn't matter.
Can you run a traceroute and post the results,
from both when ping is higher than usual and when it's normal?

I'm also getting elevated ping to FFXIV, although I'm on an EU server - you're on Crystal i'd guess, by the IP?

https://community.virginmedia.com/t5/Speed/High-ping-latency-to-Cloudflare-DNS-servers/m-p/5090290#M...
Seems to be pretty heavily related to this (for me, at least) - when the pings to Cloudflare returns to normal, so does my FFXIV connection.
as much as you shouldn't have to, you should just run through a VPN for now until it's ironed out.

Also just to rule anything else out:
Can you post your modem logs(Upstream, Downstream, Network log, etc) - copy and paste is better than screenshots.
The forum will automatically filter out MAC addresses from Network logs.

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Yejin
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Re: Huge packet loss/Latency increase before midnight

This is about to be one hell of a chunky post! i'll edit in the post midnight tracert when the time comes!

Trace RT from pre midnight:

 

 

  1     1 ms     1 ms     1 ms  192.168.0.1
  2     *        *        *     Request timed out.
  3    17 ms    11 ms    11 ms  nrth-core-2b-xe-815-0.network.virginmedia.net [62.253.128.121]
  4     *        *        *     Request timed out.
  5     *        *        *     Request timed out.
  6     *        *        *     Request timed out.
  7    21 ms    19 ms    17 ms  host-62-254-42.174.not-set-yet.virginmedia.net.42.254.62.in-addr.arpa [62.254.42.174]
  8     *        *        *     Request timed out.
  9    16 ms    19 ms    18 ms  uk-lon01c-ri2-ae-6-0.aorta.net [84.116.136.98]
 10    16 ms    16 ms    16 ms  ae-8.a02.londen12.uk.bb.gin.ntt.net [129.250.66.101]
 11    16 ms    14 ms    16 ms  ae-0.r21.londen12.uk.bb.gin.ntt.net [129.250.3.214]
 12    90 ms    96 ms    95 ms  ae-13.r25.asbnva02.us.bb.gin.ntt.net [129.250.2.111]
 13    91 ms    96 ms    90 ms  ae-1.r24.asbnva02.us.bb.gin.ntt.net [129.250.2.37]
 14   150 ms   150 ms   149 ms  ae-2.r24.snjsca04.us.bb.gin.ntt.net [129.250.6.237]
 15   154 ms   153 ms   153 ms  ae-4.r00.scrmca02.us.bb.gin.ntt.net [129.250.7.57]
 16   158 ms   153 ms   154 ms  xe-0-1-0-1-1.r00.scrmca02.us.ce.gin.ntt.net [192.80.16.2]
 17   153 ms   153 ms     *     204.2.229.230
 18   154 ms   153 ms   151 ms  204.2.229.11

 

 

 

 

 Trace RT From 1am

<code sample here>

3.0 Upstream channels

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

13940000047.35120 KSym/sec64QAM2
24620000047.55120 KSym/sec64QAM1
32580000048.55120 KSym/sec32QAM4
43260000047.85120 KSym/sec32QAM3



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

 

3.0 Downstream channels

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

25331000000-2.439QAM25625
1139000000-2.638.6QAM2561
2147000000-2.638.6QAM2562
3155000000-2.338.6QAM2563
4163000000-2.739QAM2564
5171000000-339QAM2565
6179000000-3.239QAM2566
7187000000-3.239QAM2567
8195000000-3.539QAM2568
9203000000-3.539QAM2569
10211000000-3.739QAM25610
11219000000-439QAM25611
12227000000-4.138.6QAM25612
13235000000-4.338.6QAM25613
14243000000-4.638.6QAM25614
15251000000-4.638.6QAM25615
16259000000-3.738.6QAM25616
17267000000-3.839QAM25617
18275000000-3.739QAM25618
19283000000-3.338.6QAM25619
20291000000-339QAM25620
21299000000-2.539QAM25621
22307000000-2.439QAM25622
23315000000-2.339QAM25623
24323000000-2.539QAM25624
26339000000-2.539QAM25626
27347000000-2.938.6QAM25627
28355000000-3.239QAM25628
29363000000-3.139QAM25629
30371000000-2.939QAM25630
31379000000-3.239QAM25631



 
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Yejin
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Re: Huge packet loss/Latency increase before midnight

3.0 Downstream channels

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

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



3.1 Downstream channels

Channel Channel Width (MHz) FFT Type Number of Active Subcarriers Modulation (Active Profile) First Active Subcarrier (Hz)
33964K1880QAM4096759


3.1 Downstream channels

Channel ID Lock Status RxMER Data (dB) PLC Power (dBmV) Correcteds (Active Profile) Uncorrectables (Active Profile)
33Locked41-3.246128300286

 

Network Log

Time Priority Description
Thu 01/01/1970 00:01:263No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Wed 10/08/2022 22:06:385MIMO Event MIMO: Stored MIMO=-1 post cfg file MIMO=-1;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
Thu 11/08/2022 01:52:366CM-STATUS message sent. Event Type Code: 24; Chan ID: 33; DSID: N/A; MAC Addr: N/A; OFDM/OFDMA Profile ID: 3.;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.1;
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Icantcrabhere
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Re: Huge packet loss/Latency increase before midnight

Your ping is looking about as expected, to an NA server at least. - Seems like the routing/WhateverElseItWas issue is fixed for now (mine included)
So FFXIV ping/packet loss should have returned to about normal for you now, right?

Your power levels and such look fine,
A little high end on the upstream, but still in spec.

HOWEVER
Not directly related to your FFXIV issue you were having:

3.0 Upstream channels

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

13940000047.35120 KSym/sec64QAM2
24620000047.55120 KSym/sec64QAM1
32580000048.55120 KSym/sec32QAM4
43260000047.85120 KSym/sec32QAM3


The part highlighted in red should both be 64.

Although i hate to say it, because it seems like generic response:
Can you make sure all connections are finger tight (Coaxial cable etc), although I'm doubtful that's what is causing the modulation drop.
(Improperly connected/terminated connections can drop your modulation, it's the only reason I ask )



Someone from VM should be along in a few days to assess if there's any other issues.

 

Martin_N
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Re: Huge packet loss/Latency increase before midnight

Hi Yejin,

Thank you for your post. I'm very sorry for the issues you've had with your service. 

Can you confirm if you've still been having any issues or whether this has now been resolved?

^Martin

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