I stopped all the games when my connection had been broken for over an hour. I thought it better to delay the hosting than having games hosting with staled turns. Also, I didn't know when I would have my connection back.
Actually, I was frustrated enough to do a reboot of the server after that hour, which did (not surprisingly) nothing to resolve anything. In the end I resorted to doing the dishing while having the server on
code:
until /sbin/dhcpcd eth0; do echo "Retrying"; done
Evt., I got my connection back. But my uptime was lost --- again