Intermittent packet loss.
Kids started complaining a lot about dropping out of gaming sessions lately. And I also noticed Chrome browser sometimes shows No Intenet error intermittently. And my Microsoft Teams conference call often complains about bad network. btw Both Nintendo Switch and my PC are using wired ethernet connection (1Gbps). So no wireless issue.
But didn't succeed in solving this issue yet.
I am using XB6 and have 1Gbps service. The cable modem power level and SNR looked ok, but I tried removing the booster that was in as well as a filter designed to solve problem with multi-room DVR (because I don't have TV service anymore) and it didn't make any differences. With or without the signal booster, I see the same issue.
So I started monitoring ping responses for the following:
- My Unifi security gateway - 192.168.1.1 (I'm using XB6 as bridge mode)
- XB6's admin IP (10.0.0.1)
- WAN router (22.214.171.124)
- www.google.com (IPv6)
- www.google.com (forced to IPv4)
- www.engadget.com (IPv4)
And when I observed the gaming session disconnet (probably packet loss), the ping showing "Request timeout" or "Destination host unreachable" from WAN router, www.google.com (IPv4) and www.engadget.com (IPv4) but not from google IPv6 ping.
And if I run speedtest from Speedtest.com, I get ping failure from those IP addresses more often.
I am puzzled as to why IPv6 ping shows better reliability.
Now I am more convinced that this might be Xfinity (Comcast) side issue than devices in my household. Does this sound right to you? How should I go about fixing this issue further?