The IP Address you are going to specify must be the "last" server your institution's computers pass through to access the Internet.

Your IP Address is :

If this IP address is not on your list of IP Addresses, there is a component inside or outside your network that does not allow your IP Address of that server to be recognized outside your networks.

The reasons for this could be:
- Institution's firewall server might be causing your IP Address to be 'masked'.
- Institution's proxy server might be passing through your ISP or district's server for access.

Therefore, if your institution uses proxy or firewall servers , please specify the relevant IP Address so that your institution can access EOLSS On-Line.