When login in online mode you will get error "Can not connect to Server", because PNETLab can not connect to PNETLab server. When you ping from PNETLab to pnetlab.com you will get the error: Temporary failure in name resolution
To fix this you need to config DNS server for PNETLab. You can run this command in PNETLab console to set Google as DNS server.
echo "nameserver 8.8.8.8" > /etc/resolv.conf
Try Ping to pnetlab.com again. If success, you can login
If still does not successful, may be your network system does not allow to use DNS of google as DNS. You can set dynamic DNS from your network by run:
