Public bug reported:
After upgrading to 24.04 on my laptop, I noticed my boot was taking
about 2 minutes. After a lot of troubleshooting, I determined that when
I add a network connection through KDE, it has the IPv6 security set to
default. The default behavior is to apply IPv6 privacy settings. Running
NetPlan debug, this step takes around two minutes.
Setting the wireless connection configuration IPv6 privacy to
"disabled", my wireless connects instantly and my computer no longer
hangs for two minutes when booting.
When adding new wireless connections, however, the Plasma desktop also
freezes for about two minutes during this step until I can edit the
connection and disable the "default" privacy feature.
I'm not sure if this is due to a problem in KDE (should this setting be
disabled by default?) or in NetworkManager (should the "default"
configuration have this disabled?), in NetPlan (should it have something
in the default network configuration for all connections that set
`stable-privacy` (which seems to be the "disabled" option)?
Regardless, this process taking nearly two minutes, adding that to the
boot time, seems unacceptable.
** Affects: ubuntu
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2067185
Title:
Default NetworkManager Security Configuration for IPv6 Causes Severe
Hang
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