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Constant lag and packet loss

BS56
Regular Visitor

Constant lag and packet loss

About a month ago I started getting intermittent lag and packet loss.

I've already ruled out everything on my end. Running simultaneously pings on my end to various destinations and the router itself for control.

I'm seeing constant spikes of 200+ ms and anywhere between 4-11% packet loss over multiple hours of testing. This is unacceptable.

This is unlikely due to network traffic either. It ran well for the entire duration of 2020 without issues.
EG
Expert

Re: Constant lag and packet loss

What do the modem's signal stats look like ?  Try getting them here http://192.168.100.1 or here http://10.0.0.1

Please post the *Downstream Power Level*, the *Upstream Power Level*, and the *SNR* (Signal to Noise Ratio) numbers.

What is the exact make and model number of the modem ?

Is this a WiFi connection ?

 

Also, post the output of a traceroute to google.com



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BS56
Regular Visitor

Re: Constant lag and packet loss

Thanks for the response.

I'm using a Netgear C7100V.

I'm basing this off a hardwired connection straight to the router.

Sorry, not sure exactly which one you need, as there are multiple channels listed.

Downstream power - 12.1 dBmV
Upstream power - 42.8 dBmV
SNR - 39.8 dB

I have been doing most of my testing just pinging Google on command prompt. I can try to get something more "official" later to post.

This is what I pulled from a ping -t over the last hour or so.

Ping statistics for 172.217.4.78:
Packets: Sent = 3121, Received = 2950, Lost = 171 (5% loss),
Approximate round trip times in milli-seconds:
Minimum = 21ms, Maximum = 549ms, Average = 90ms
EG
Expert

Re: Constant lag and packet loss

As stated, please post a traceroute output (not a ping output) to google.com.

 

Also, we need to see all of the signal stats. Take screenshots and host them at one of those free third-party pic hosting sites like Imgur or Photobucket and post the link to them here.


Or copy all of the text of the status page and paste it into the body of your next post here.






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I am a Customer Expert volunteering my time to help other customers here in the Forums.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark the post as Best Answer!
BS56
Regular Visitor

Re: Constant lag and packet loss

Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables Uncorrectables
1 Locked QAM256 37 621000000 Hz 12.2 dBmV 39.8 dB 0 0
2 Locked QAM256 41 645000000 Hz 11.4 dBmV 39.5 dB 0 0
3 Locked QAM256 42 651000000 Hz 11.5 dBmV 39.5 dB 0 0
4 Locked QAM256 43 657000000 Hz 11.5 dBmV 39.5 dB 0 0
5 Locked QAM256 44 663000000 Hz 11.5 dBmV 39.4 dB 0 0
6 Locked QAM256 25 549000000 Hz 11.0 dBmV 39.9 dB 0 0
7 Locked QAM256 26 555000000 Hz 11.2 dBmV 39.9 dB 0 0
8 Locked QAM256 27 561000000 Hz 11.2 dBmV 39.7 dB 0 0
9 Locked QAM256 28 567000000 Hz 11.5 dBmV 39.9 dB 0 0
10 Locked QAM256 29 573000000 Hz 11.7 dBmV 40.0 dB 0 0
11 Locked QAM256 30 579000000 Hz 12.0 dBmV 40.0 dB 0 0
12 Locked QAM256 31 585000000 Hz 12.0 dBmV 40.0 dB 0 0
13 Locked QAM256 32 591000000 Hz 12.0 dBmV 40.0 dB 0 0
14 Locked QAM256 33 597000000 Hz 12.0 dBmV 39.9 dB 0 0
15 Locked QAM256 34 603000000 Hz 12.1 dBmV 39.9 dB 0 0
16 Locked QAM256 35 609000000 Hz 12.2 dBmV 39.9 dB 0 0
17 Locked QAM256 36 615000000 Hz 12.1 dBmV 40.3 dB 0 0
18 Locked QAM256 38 627000000 Hz 11.9 dBmV 40.3 dB 0 0
19 Locked QAM256 39 633000000 Hz 11.7 dBmV 39.9 dB 0 0
20 Locked QAM256 40 639000000 Hz 11.3 dBmV 39.9 dB 0 0
21 Locked QAM256 21 525000000 Hz 10.6 dBmV 40.8 dB 0 0
22 Locked QAM256 22 531000000 Hz 10.5 dBmV 40.8 dB 0 0
23 Locked QAM256 23 537000000 Hz 10.6 dBmV 40.8 dB 0 0
24 Locked QAM256 24 543000000 Hz 10.7 dBmV 40.4 dB 0 0
Upstream Bonded Channels
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
1 Locked ATDMA 2 5120 Ksym/sec 31400000 Hz 42.8 dBmV
2 Locked ATDMA 1 5120 Ksym/sec 37800000 Hz 42.8 dBmV
3 Locked ATDMA 3 5120 Ksym/sec 25000000 Hz 42.8 dBmV
4 Locked ATDMA 4 5120 Ksym/sec 18600000 Hz 42.8 dBmV
5 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
6 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
7 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
8 Not Locked Unknown 0 0 Ksym/sec 0 Hz 0.0 dBmV
Current System Time: Mon Feb 15 15:00:47 2021
System Up Time: 2:44:41

All of the traceroutes look a bit different. Here are the last two.

Tracing route to google.com [172.217.4.78]
over a maximum of 30 hops:

1 4 ms 4 ms 2 ms 192.168.0.1
2 55 ms 22 ms 158 ms 96.120.116.197
3 176 ms 55 ms 65 ms po-301-1204-rur02.eagan.mn.minn.comcast.net [68.87.179.165]
4 51 ms 52 ms 42 ms be-16-ar01.roseville.mn.minn.comcast.net [68.86.233.93]
5 39 ms 211 ms 137 ms be-13367-cr02.350ecermak.il.ibone.comcast.net [68.86.94.81]
6 218 ms 71 ms * be-1202-cs02.350ecermak.il.ibone.comcast.net [96.110.36.101]
7 234 ms 114 ms 33 ms be-2211-pe11.350ecermak.il.ibone.comcast.net [96.110.33.198]
8 31 ms 57 ms 93 ms 50.208.232.238
9 51 ms 46 ms 120 ms 209.85.240.245
10 95 ms 89 ms 143 ms 216.239.51.117
11 57 ms 69 ms 40 ms lga15s47-in-f78.1e100.net [172.217.4.78]

Trace complete.

Tracing route to google.com [172.217.4.78]
over a maximum of 30 hops:

1 12 ms 38 ms 12 ms 192.168.0.1
2 * * 25 ms 96.120.116.197
3 115 ms 137 ms 29 ms po-301-1204-rur02.eagan.mn.minn.comcast.net [68.87.179.165]
4 159 ms 24 ms 44 ms be-16-ar01.roseville.mn.minn.comcast.net [68.86.233.93]
5 54 ms * 66 ms be-13367-cr02.350ecermak.il.ibone.comcast.net [68.86.94.81]
6 * * 56 ms be-1202-cs02.350ecermak.il.ibone.comcast.net [96.110.36.101]
7 97 ms 137 ms 146 ms be-2211-pe11.350ecermak.il.ibone.comcast.net [96.110.33.198]
8 78 ms 98 ms 279 ms 50.208.232.238
9 40 ms 379 ms 140 ms 209.85.240.245
10 97 ms 36 ms 187 ms 216.239.51.117
11 76 ms 82 ms 132 ms lga15s47-in-f78.1e100.net [172.217.4.78]

Trace complete.

The second one was from a device on WiFi.