[arch-general] odd problem with NetworkManager and wired

[Genes Lists]

  Haven't plugged an ethernet cable into my laptop for a while - today I 
did. Wirelss has been working flawlessly.

   Plugging a wire in however refuses to connect - the error in journal is:

.. dhclient[30318]: execve 
(/usr/lib/networkmanager/nm-dhcp-client.action, ...): No such file or 
directory

  Which is correct. In fact the only script in there with dhcp is 
nm-dhcp-helper. When connected via wifi and checking to see what is 
running this script is used:

ps -eaf | egrep dhcp
root       605   555  0 18:53 ?        00:00:00 /usr/bin/dhclient -d -sf 
/usr/lib/networkmanager/nm-dhcp-helper -pf /var/run/dhclient-wlp3s0.pid 
-lf 
/var/lib/NetworkManager/dhclient-226bfd76-9c49-43fd-8dff-bf6e0809313c-wlp3s0.lease 
-cf /var/lib/NetworkManager/dhclient-wlp3s0.conf wlp3s0


So the problem seems to only happen for the wired interface.

I -know- this used to work fine, but unfortunately I have no idea when 
it stopped.

Any suggestions how to get wired working again? I tried on 2 different 
laptops - same problem.

Thanks for any advice.

gene