Affects Version/s: None
Fix Version/s: None
Intel Wireless-AC 7260 DT (via 'iwlwifi' kernel module)
A recent update to net-misc/networkmanager-1.0.0 has resulted in my wireless (802.11g and 802.11n) connection(s) repeatedly disconnecting/reconnecting. Network connectivity is effectively unusable.
The following output from the kernel ring buffer is repeated:
A similar bug has been reported to the NetworkManager project https://bugzilla.gnome.org/show_bug.cgi?id=743472. The suggestion is that utilising net-misc/dhcpcd for ip resolution is problematic for NetworkManager version 1.0.0. Similarly, the NetworkManager page on the Gentoo Wiki (link) currently recommends switching from net-misc/dhcpcd to net-misc/dhcp.
Consequently I experimented with these recommendations. Firstly I added the following to /etc/portage/package.use
as the default USE flags for NetworkManager are dhcpcd -dhclient.
I then performed an emerge update which pulled in net-misc/dhcp-4.3.2 and re-emerged net-misc/networkmanager-1.0.0 with the changed USE flags. Next was a change to the NetworkManager configuration file so that net-misc/dhcp ('dhclient') would be used instead of net-misc/dhcpcd ('dhcpcd')
As per the Gentoo Wiki, the hostname was added to the configuration of the net-misc/dhcp client with the following line
Lastly I restarted NetworkManager and allowed it to connect automatically to my wireless network.
Following the above steps my wireless (wifi) connection returned to normal. The disconnection/reconnection problem was resolved.