For assistance, please call: 1-800-272-7033Appendix59Troubleshooting “Problem“The system has detected a conflictfor IP address with the systemhaving hardware addressXX:XX:XX:XX:XX:XX” or “Anotherdevice on your TCP/IP Internet,which has the physical addressXX:XX:XX:XX:XX:XX, is currentlyusing the same IP address(XXX.XXX.XXX.XXX). Your TCP/IPnetwork interface has been shutdown.” is displayed in the dialogbox.“Host Unknown” is displayed afteryou changed the KX-HGW200Setup.The KX-HGW200 web screen doesnot appear.A WWW (World Wide Web) sitedoes not appear.Cause and Remedy≥Turn off the KX-HGW200 and all the computers, andthen turn on the KX-HGW200 again. After that, turn onthe computers.≥Make sure all the computers are set to “Obtain an IPaddress automatically” (for Windows, p. 21) or “UsingDHCP Server” (for Macintosh, p. 26). Use the DHCPserver function of the KX-HGW200.≥Check that the static IP address is the same valuewithin the KX-HGW200 DHCP Available Address Range(p. 34).≥Restart the computer and access the KX-HGW200 webscreen again.≥When you change the IP address of the KX-HGW200(p. 33), enter the new IP address in the address field ofthe browser (p. 27).≥The computer is not assigned a local IP address by theKX-HGW200. Make sure the computer is set to “Obtainan IP address automatically” (for Windows, p. 21) or“Using DHCP Server” (for Macintosh, p. 26) and restart.≥If you check the IP address is assigned correctly by theKX-HGW200, follow the procedure below.Click the [Start] button, select Run..., enter “winipcfg”,and click [More\Info], for Windows. Click Apple menu,select Control Panels and TCP/IP, for Macintosh.≥Make sure the ETHERNET indicator or HomePNAgreen indicator is on. Make sure the LAN card indicatoris on. If any indicator is off, check the home networkconnections.≥According to the status of the home network, the webscreen does not appear quickly. Wait a second.≥Confirm the connections of the cable/xDSL modem,KX-HGW200 and home network.≥Check the connection between the KX-HGW200 andthe computer by using the Ping command on theWindows computer.≥Check the Status screen (p. 42) of the KX-HGW200web screen. From the Status screen, make sure theKX-HGW200 is assigned an IP address from the ISP. Ifit isn’t, setup the parameters in the Basic Setup screen.≥Set up the proxy server use (p. 47–50).