Hello Does a Linksys BEFW11S4 router have loopback capability? If not, I must be out of my mind. I am unable to view my websites from the LAN side when I try to go outside first, such as http://www.mysite.com. However, I was able to do this at one time and now I cannot. I do not know what might have changed. The websites are accessible to outside users from the WAN. To compensate for the change, I have modified the hosts file on my development machine in order to test. This is another indicator that something has changed as I did not need to do this before. Any ideas? I have a Comcast cable connection through their cable modem to my Linksys router. The Linksys forwards port 80 requests to the web server. Comcast provides a dynamic IP which is monitored by a client program on the web server that notifies No-IP.com when it changes. No-IP then redirects my website address to the new IP. In effect, keeping my website address static. I have been using this for two years. The web server computer is cable connected to the router and it has a static internal IP. The operating system is Windows 2000 Server with IIS 5.0. web server. I do not run a software firewall, but I do run a McAffee Virus Scan. Your help is greatly appreciated.