If I plug my laptop into my network switch, behind my router, packet loss will jump 5% to 15%. Average latencey was around 250ms, which is not good. Packet loss at the final hop over 3-4 hours in the middle of the day was at 1.7%. If I plug my laptop directly into the cable modem, I get livable, but not great results. After some more experimenting, I have determined that my network is somehow causing downstream packet loss. Please let us know what happens with a longer monitored timeframe.
Hopefully, that will point you in the right direction to start solving this.
If it is shown to be Comcast's network, this guide will show you how you can prove it to them by building a good case. We do also have a great guide to troubleshooting network issues that you may find useful here: This would allow you to see if the pattern here happens to be time based (do the spikes in latency/packet loss drop during non-peak hours - when no one is using the internet?), which may help provide more clues to what is happening here. At this point, it may prove helpful to continue monitoring for a longer period of time (if you could let PingPlotter run continuously for 24 hours - that would be great). It *does* look pretty similar to bandwidth saturation (as seen here: ). It is really hard to say based on your screenshots (due to only have about 30 second samples), but it *does* look like this is on Comcast's side. Not great, but perhaps manageable packet loss.ĭescription: from behind my router. Hop 2 is my modem.ĭescription: Pinging from my modem. Should be best case, but results are not idealĭescription: Pinging from behind my router. Should Comcast's network be better, or is it as good as it gets?ĭescription: Pinging directly from the modem. So is it possible that my router is doing something to my packets that is somehow causing packet loss? Also, there are 2 or 3 Comcast servers/routers that I hit every time I ping something. It doesn't matter what I ping, this pattern holds. The latency I'm seeing seems much higher than what others are seeing. Much less packet loss, and still quite a bit of latency, but not much variation in latency. Lots of packet loss, and lots of latency, that seem to originate a few hops in on Comcast's network. Then I pinged, my voip provider of the moment. To troubleshoot, initially I pinged my modem at 10.1.10.1. Comcast just replaced my modem with a brand new one. For background, my network consists of a Zywall 110 router, and a Zonet gigabit switch.
#Comcast level 1 hop pro#
Ping Plotter Pro has shed much light, and what I see in the light has created confusion. I'm trying to understand my poor VOIP performance.
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