someone can help me, I open port 80, 21in EchoLife HG520c except in the port 80 in this when I open this in my home my website not have any difficulty, but if open the browser in my office and attempt to unlock my website, the browser demonstrate us the EchoLife HG520c website for the port 21 we are not able to logon our system by ftp and telnet, when I unlock the port 80 and do I click in save demonstrate me a subsequently message: The port HTTP of modem change to 8080 of WAN, LAN and port still 80, when I unlock the port 21 and do clic in save demonstrate me a after that message: The port FTP of modem alter to 2121 of WAN, LAN and port still 21 and when I open the port 23 and do clic in keep show me a next message: The port TELNET of modem modify to 2323 of WAN, LAN and port still 23.
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