@ Pconfig / #20

> You can't tell your grandmother to edit some config files because her
internet is slow

Does your grandmother use Ubuntu then? If so, then just help her out in
fixing the issue :)

@ Zack Evans / #23

> I have a Draytek so blaming the router isn't practical - these have a
MASSIVE installed base

This problem also is in effect when the user has Windows and IPv6
enabled on that. The problem lies in the DNS resolver (which might not
be the NAT box (what you call "router") but might be even your ISP, and
thus you can avoid the problem by not using the DNS resolver in the NAT
box. You might of course also try to upgrade your router, maybe they
fixed the problem (you upgrade your Ubuntu and other things too, because
they have issues, thus try that)

> To be honest, only the advanced users would want IPv6 anyway, so why
not have it off by default and make it very easy to switch on?

Because in a few years or so you will have to enable IPv6 as there won't
be any new hosts with IPv4 addresses. As such, better bite the apple
today and fix those IPv6 issues, then wait till you really need it.

@ camper365  / #24

yes, that is correct, as when you ping www.google.com it has to lookup
the hostname in DNS, while if you ping the address, it doesn't. DNS
resolving (thus figuring out which address belongs to the requested
hostname) is where the problem lies. See the hints about OpenDNS or
pdns-recursor to solve it.

@ Ragnarel / #25

as per comment #11 try a:
  for i in `cat /etc/resolv.conf | grep ^nameserver | cut -f2 -d' '`; do dig 
@$i www.microsoft.com AAAA; done
when connected to wireless and when not connected to wireless. Or just for that 
matter, check if you are using the same nameservers when connected to wireless 
and wired, if they are different then you already got a small part of the 
answer.

-- 
[karmic regression] all network apps / browsers suffer from multi-second delays 
by default due to IPv6 DNS lookups
https://bugs.launchpad.net/bugs/417757
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