You have put your IP address? Your external IP address maybe, this shouldn't be used with most home configurations as most home configurations have a router with a NAT environment so every device gets a local IP address in the 192.168.x.x or 10.0.x.x range.
In short, leave the IP address on auto if you use the graphical setup interface of LFS or if you are using the config file+dedi host program don't define the IP address at all.