network manager reports connectivity when there isn't any after a hard reboot

[Mike.lifeguard]

When doing hard reboots after an X crash, nm-applet reports that it's connected normally, yet nothing requiring network connectivity actually works. This is resolved by doing a soft reboot (from logged in, not from the login screen), until the next hard reboot.

At the beginning of booting, there are several lines about networking stuff: resolvconf, dnsmasq, and maybe something else. One of those lines changes from 1st (hard) reboot to 2nd (soft) reboot, which is probably useful information, but I can't read it as it flies by, and I can't scroll back to it in CTRL-ALT-F8... I'm sure you can tell me how to get it somehow

I'm using Jaunty, with dnsmasq set up to cache dns locally (using instructions from http://ubuntu.wordpress.com/2006/08/02/local-dns-cache-for-faster-browsing/ ), and nothing special that seems relevant to me, though I'm sure you'll have a long list of stuff you want from me :)

[Pedro Villavicencio (pedro)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. The issue that you reported is one that should be reproducible with the live environment of the Desktop CD of the development release the Karmic Koala. It would help us greatly if you could test with it so we can work on getting it fixed in the next release of Ubuntu. You can find out more about the development release at http://www.ubuntu.com/testing/ . Thanks again and we appreciate your help.

[Pedro Villavicencio (pedro)]

We are closing this bug report because it lacks the information we need to investigate the problem, as described in the previous comments. Please reopen it if you can give us the missing information, and don't hesitate to submit bug reports in the future. To reopen the bug report you can click on the current status, under the Status column, and change the Status back to New. Thanks again!.

[Mike.lifeguard (mikelifeguard)]

I guess all you're looking for is a confirmation it happens with Karmic? It does.

[Mike.lifeguard (mikelifeguard)]

BTW, since this involves a hard reboot, asking someone to test with in a LiveCD environment is a no-go.

[Mathieu Trudel-Lapierre (cyphermox)]

So what would be happening at this point is probably some kind of issue with the contents of /etc/resolv.conf. Since you reportedly use dnsmasq and resolvconf, and resolvconf has been known in the past to be somewhat unreliable; I'd be tempted to say this was an issue with that version (or those versions) of resolvconf.

We've switched to using dnsmasq (without caching, though) as a resolver for the desktop and resolvconf to maintain the /etc/resolv.conf file globally. I believe most of the issues you're speaking of are probably resolved in at least Oneiric, or even in the current development version: Precise Pangolin, which will in time be released as Ubuntu 12.04.

Can you please confirm whether you're still using the same Ubuntu releases, or if not, whether this issue is still present? This would help a great deal in identifying and resolving the problem.

If you indeed can reproduce the issue, please make sure you take a copy of /etc/resolv.conf before using your workaround so that we have this additional information to help with identifying the issue.

Thanks in advance!

[Launchpad Janitor (janitor)]

[Expired for network-manager (Ubuntu) because there has been no activity for 60 days.]