Public bug reported:
When the first DNS lookup fails with a format error (see attachment
captured by Wireshark): No DNS-lookup works, even if I change to a
working connection. I can't connect at all to the Internet. I need to
restart the computer to get the DNS-system working again with another
connection.
If I first connect to the working connection and then switches to the
connection that sometimes gives format errors, the errors are ignored
and the connection works.
$ lsb_release -rd
Description: Ubuntu 18.04.2 LTS
Release: 18.04
** Affects: ubuntu
Importance: Undecided
Status: New
** Attachment added: "Format error reported by Wireshark"
https://bugs.launchpad.net/bugs/1820240/+attachment/5246372/+files/formaterror.pcapng
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https://bugs.launchpad.net/bugs/1820240
Title:
dns lookup reports format error packet response
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