Not applicable

Random ping spikes.

Getting random ping spikes to 500+ that last for 5-10 seconds.

Startup Procedure
ProcedureStatusComment
Acquire Downstream Channel741000000 HzLocked
Connectivity StateOKOperational
Boot StateOKOperational
SecurityEnabledBPI+
IP Provisioning ModeIPv6 Onlyipv6Only(1)
 
Downstream Bonded Channels
ChannelLock StatusModulationChannel IDFrequencyPowerSNRCorrectablesUncorrectables
1LockedQAM2568741000000 Hz-1.3 dBmV39.4 dB00
2LockedQAM2561699000000 Hz-1.7 dBmV39.3 dB00
3LockedQAM2562705000000 Hz-1.7 dBmV39.3 dB00
4LockedQAM2563711000000 Hz-1.2 dBmV39.5 dB00
5LockedQAM2564717000000 Hz-1.3 dBmV39.5 dB00
6LockedQAM2565723000000 Hz-1.3 dBmV39.6 dB00
7LockedQAM2566729000000 Hz-1.4 dBmV39.5 dB00
8LockedQAM2567735000000 Hz-1.2 dBmV39.5 dB00
9Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
10Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
11Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
12Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
13Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
14Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
15Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
16Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
17Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
18Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
19Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
20Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
21Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
22Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
23Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
24Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
 
Upstream Bonded Channels
ChannelLock StatusUS Channel TypeChannel IDSymbol RateFrequencyPower
1LockedATDMA105120 Ksym/sec24200000 Hz52 dBmV
2LockedTDMA92560 Ksym/sec19400000 Hz52 dBmV
3LockedATDMA115120 Ksym/sec30600000 Hz52 dBmV
4LockedTDMA122560 Ksym/sec37000000 Hz52 dBmV
5Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
6Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
7Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
8Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
16 REPLIES 16
Spectrum Employee

Re: Random ping spikes.

This topic could use some more information honestly...

1.  Ping spikes to what, specifically?  Need a destination IP so the rest of your peers here can compare to.

 

2. Your transmit/upstream/return signal power (read please) is too high, you modem is screaming at it's sensor's maximum (possibly above it).   A 52 or above transmit isn't helping the situation, might even be the primary root cause right there.  

Spoiler
Possibly needing an amp installed, or your point of demarcation needs some splitters otherwise removed from the equation.  Even possibly a maintenance issue (albeit that's least likely).  Regardless, schedule a field tech appointment (called a troubcall, or truck roll) for this please...  To make things go smoother figure out where your coax outlets are all located in your residence and where your point of demarcation (where all your splitter come together) is located.  Need them accessable by the tech so they can be repaired.  But most likely root cause it too many splitters in series, and a possible need for an amp instead.  Keep in mind, an amp MUST have power supplied from some AC power outlet source; energy doesn't come from nothing, it's supplied from elsewhere.  But a unity-gain (aka. no-loss, no-gain) amp wouldn't lose signal power like a passive splitter, and that might be what is needed here.

 

3.  Need to also kindly ask the field tech to check for leaks (aka. ingress/egress).  Want noise below -30 dB, and ideally below -35 dB.

Spoiler
dB (decibles) without a unit after it is a reference in SNR  (signal to noise ratio -- a comparison between power levels between the signal and the noise)

 

PS:  Your area you live in is clearly a 16 downstream channel/frequency by 4 upstream channel.  Nice to have a 32x8 modem, but not currently a benefit.  The "not locked" channels are not anything to be concerned about.

 

My postings on this site are my own, off-the-clock, and don’t necessarily represent TWC’s/Charter's strategies or opinions.
Not applicable

Re: Random ping spikes.

The ping spikes seem to be to everything, I get them on ps4, pc games/apps, and i see packet loss and latency spikes on pingplotter to www.twc.com.

Proven Sharer

Re: Random ping spikes.

It will also help to have a tracert to Google.com or your favorite game server site, along with your ZIP Code and the Event Log listing from the modem.  With those we can usually figure out why pings are so high, and why your modem only sees 8 active DS channels instead of 12 or 16 used in most TWC areas.

Not applicable

Re: Random ping spikes.

I had a tech come out and my upstream power levels are now at 48-49 but im still seeing the issue sometimes.

Startup Procedure
ProcedureStatusComment
Acquire Downstream Channel741000000 HzLocked
Connectivity StateOKOperational
Boot StateOKOperational
SecurityEnabledBPI+
IP Provisioning ModeIPv6 Onlyipv6Only(1)
 
Downstream Bonded Channels
ChannelLock StatusModulationChannel IDFrequencyPowerSNRCorrectablesUncorrectables
1LockedQAM2568741000000 Hz2.7 dBmV39.9 dB00
2LockedQAM2561699000000 Hz2.1 dBmV39.7 dB00
3LockedQAM2562705000000 Hz2.1 dBmV39.8 dB00
4LockedQAM2563711000000 Hz2.3 dBmV39.9 dB00
5LockedQAM2564717000000 Hz2.3 dBmV40 dB00
6LockedQAM2565723000000 Hz2.5 dBmV40 dB00
7LockedQAM2566729000000 Hz2.5 dBmV40 dB00
8LockedQAM2567735000000 Hz2.5 dBmV40 dB00
9Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
10Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
11Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
12Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
13Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
14Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
15Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
16Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
17Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
18Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
19Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
20Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
21Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
22Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
23Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
24Not LockedUnknown00 Hz0.0 dBmV0.0 dB00
 
Upstream Bonded Channels
ChannelLock StatusUS Channel TypeChannel IDSymbol RateFrequencyPower
1LockedATDMA105120 Ksym/sec24200000 Hz48.5 dBmV
2LockedTDMA92560 Ksym/sec19400000 Hz48.5 dBmV
3LockedATDMA115120 Ksym/sec30600000 Hz48.8 dBmV
4LockedTDMA122560 Ksym/sec37000000 Hz49 dBmV
5Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
6Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
7Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
8Not LockedUnknown00 Ksym/sec0 Hz0.0 dBmV
Not applicable

Re: Random ping spikes.

This is before any issues http://imgur.com/M5uM9up and this is the issue http://imgur.com/BHNCJ80

Not applicable

Re: Random ping spikes.

Can anybody help?

Expert

Re: Random ping spikes.

The tech took a 2 way splitter out of the line and improved levels by 3.5 dB.

Are you on a wireless connection?

 Are any devices running cloud, sync, onedrive, dropbox or the illegal microsoft peer to peer upgrade in Win 10?

 Also, in ping plotter, add in the MAX column to display....

 This appears to be a coaxial issue...

Let the modem run for 4-8 hours without a reset, then look at the error and signal pages... I suspect correcteds and uncorrecteds from bad connections...

 

Not applicable

Re: Random ping spikes.

Im always on wired, only things i have running is google chrome,curse(voice chat service), and my ps4. Modem hasnt been reset since about 7 am yesterday and i have zero correctable/uncorrectable codewords. Here is the log since last reset 

2017-1-22, 06:43:16Critical (3)Resetting the cable modem due to docsDevResetNow
1970-1-1, 00:00:39Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=2c:30:33:7d:46:20;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
2017-1-22, 06:58:16Critical (3)Started Unicast Maintenance Ranging - No Response received - T3 time-out;CM-MAC=2c:30:33:7d:46:20;CMTS-MAC=00:01:5c:24:04:86;CM-QOS=1.1;CM-VER=3.0;
1970-1-1, 00:00:37Notice (6)WiFi Interface [wl1] set to Channel 153 (Side-Band Channel:N/A) - Reason:INIT
1970-1-1, 00:00:37Critical (3)SYNC Timing Synchronization failure - Failed to acquire QAM/QPSK symbol timing;;CM-MAC=2c:30:33:7d:46:20;CMTS-MAC=00:00:00:00:00:00;CM-QOS=1.0;CM-VER=3.0;
1970-1-1, 00:00:44Notice (6)Overriding MDD IP initialization parameters; IP provisioning mode = IPv6
2017-1-22, 23:08:28Error (4)Missing BP Configuration Setting TLV Type: 17.8;CM-MAC=2c:30:33:7d:46:20;CMTS-MAC=00:01:5c:24:04:86;CM-QOS=1.1;CM-VER=3.0;
2017-1-22, 23:08:28Error (4)Missing BP Configuration Setting TLV Type: 17.9;CM-MAC=2c:30:33:7d:46:20;CMTS-MAC=00:01:5c:24:04:86;CM-QOS=1.1;CM-VER=3.0;
Not applicable

Re: Random ping spikes.

I also have this from a few hours ago https://gyazo.com/ec645936715441bc4ddfec8afa180689 and this one right after https://gyazo.com/ca36acc171f1c9427e39b2eb37780dbf