@omarlibre mirá vos, no me había pasado, pero claro, nunca uso dhcp. Tengo entendido que nm y dhcpd no se llevan bien: "NetworkManager and other network management services typically don't work together. That includes a standalone instance of dhcpcd. Make sure only one network management service is running." (de la wiki de gentoo https://wiki.gentoo.org/wiki/NetworkManager)