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High packet loss in evenings

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New Poster

High packet loss in evenings

For several nights, starting at 5 or 6 PM, I have had very high (10+%) packet loss when using winMTR to ping to any host. I've check my router traffic log and the peak usage is very low (only a couple Mbps), and yet I still get quite bad packet loss. Anything I can do to fix this?

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Regular Visitor

Re: High packet loss in evenings

Ping your router.  If that has packet loss, check your media (wifi?  Hard wired?).


If possible, use a CAT5e or CAT6 ethernet cable to connect your rig to the router.  That eliminates wifi radios and interference.

 

Ping/ICMP traffic is low priority.  Devices (routers, hosts, etc) will reply to ping/ICMP *if* they aren't busy and *if* sufficient WAN bandwidth exists.  Pinging anything past your router is not helpful until you know your LAN is not dropping traffic.

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New Poster

Re: High packet loss in evenings

I'm already connected via ethernet. The WinMTR output includes a ping to my router which has 0% packet loss. It could be the case that the ICMP traffic is getting dropped first, but I did start using it to check packet loss as a result of noticing issues with other applications, and at other times of day I get near 0% loss with pings.

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Regular Visitor

Re: High packet loss in evenings

Okay, so the packet loss issue is not on your local network.  Let's get the next router hop on your WAN:


 tracert 198.6.1.1

 

(198.6.1.1 is a UUnet Domain Name Server)

 

tracert (traceroute) will list each router and three ping/icmp round trip time to reach UUdns1.  The router list should include your local router (ex:  192.168.1.1), your Comcast cable modem WAN IP (ex:  24.x.y.z), and the first Comcast backbone router past your cable modem.  Asterisks are ping/icmp timeout.

 

ex:

First hop 192.168.1.1. 12  21  28

Second hop 24.12.23.112  15  11  34

Third hop 24.122.32.15  31 43 *  (one pretend packet lost)

 

I recommend pinging your gateway LAN IP, WAN IP and the Comcast backbone router (3rd hop).