Jedenfalls habe ich die Meldung
Feb 11 21:19:50 frege pppoe-connect: PPPoE connection lost; attempting re-connection.
Feb 11 21:19:55 frege pppd[4623]: Plugin /usr/lib/rp-pppoe/rp-pppoe.so is for pppd version 2.4.4, this is 2.4.5
dahingehend interpretiert.
pacman -Q rp-pppoe ppp
rp-pppoe 3.10-2
ppp 2.4.4-6