You can always use any of the 5 following seed nodes;

node01.getlynx.io
node02.getlynx.io
node03.getlynx.io
node04.getlynx.io
node05.getlynx.io

To make it easier, you can copy/paste the following list directly into your lynx.conf file;

addnode=node01.getlynx.io
addnode=node02.getlynx.io
addnode=node03.getlynx.io
addnode=node04.getlynx.io
addnode=node05.getlynx.io