You should probably start a new thread for your issue, rather than 'piggy-back' on another person's one.
If you can access your S1 through wi-fi, you can go to the network configuration and find out what the WAN setting is, change it for a static IP address in the range supported by your router (for example if your router is at 192.168.2.1 and supports an address range of 192.168.2.2 - 192.168.2.50, you should set your WAN to something like 192.168.2.49, ensuring that '49' is not used by any other device on your home network. (If your router supports 'IP reservation', you should assign that IP address to your Antminer S1). Write down the fixed IP address that you set your S1 WAN to, plug a LAN cable connected to your home network into the RJ-45 socket on the S1, reboot your S1 and use the new WAN address to login to the web interface. Check the mining status (takes a minute or 2 to start mining) to ensure that all is working to your satisfaction.
Cheers