Re: Bizarre packet loss
On Thu, 22 Oct 2020 22:07:18 -0400
Gregory Seidman <gsslist+debian@anthropohedron.net> wrote:
> If I ping the Debian server from OpenWRT, the wireless device, or the
> wired device I get 25%-30% packet loss *unless* I am pinging an
> external IP from the Debian server at the same time, at which point
> the packet loss goes below 1%. I have no explanation for this.
Bizarre, indeed.
The first thing I try is to cycle power on all three routers
simultaneously. Leave them off for at least 20 seconds. Sometimes they
just lose their marbles.
Failing that, mtr (package mtr-tiny for the command line version) is an
excellent diagnostic tool for this sort of thing. It will tell you
where a problem lies much better than ping will. E.g.:
mtr -r -i 3 -c 10 debian.org
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