Comment 15 for bug 262817

I can confirm the same problem just upgraded a stock 8.04 Hardy with Network Manager 0.7 to 8.10 Intrepid. My wired and wireless networking stopped working. DHCP wasn't working for any interface. DHCP worked fine before the upgrade.

I was able to manually configure a network interface, but was then blocked from reinstalling 'network manager' by 'network manager' itself claiming I was still 'offline' (the same thing that network manager uses to screw up bluetooth networking and firefox/thunderbird).

After reading this bug: By changing the user from 'dhcp' to 'root' in the '/etc/dbus-1/system.d/nm-dhcp-client.conf' I was able to get DHCP going again.

Like the rest of us with this problem I have certainly never edited or even heard of the '/etc/dbus-1/system.d/nm-dhcp-client.conf' file.

Upgrading to 8.10 has been a huge disaster/regression for networking particularly for netbook users (most problems have been related to drivers used in the market leading netbooks like ASUS and Acer). I've just spent hours reading many many web pages and forum posts from the many suffering Ubuntu users who upgraded and found their networking stopped working, PPTP stopped working, DHCP stopping working, and a few other problems. Then, with no working network, they have extra problems trying to restore their systems. I read several angry venting people say they are giving up on Ubuntu completely and going back to XP. That's sad for all the hard work the Ubuntu team and community put in. 8.10 may have many improvements but I think it has been a net set-back for the Ubuntu/Linux community.

Some sort of bold warning about the networking regressions should be added to the upgrade process or a fix applied to 8.10 otherwise more Ubuntu users will suffer if they upgrade their Hardy installations. Even if just a warning to wait for Jaunty or something.

Aaron.