359692 Remote Login Script

I'm a godaddy Reseller and I'm trying to put the login information for my customer in my IT company website. For some reason after I put the codes for the login option, it works but not for long, sometimes it last 1 week and sometimes 2 minutes but it looks like the system block remote login because I'm prompted with an error. I need someone to build a code for me so I can use the login option in my website. To test the settings go to: [login to view URL] Create a free account and then try to build the login codes and use your free account to login from other domain to see if it works. Let me know ones you have the solution for me. Thank you Regards Johans