Myrepeater.net works like a URL. It is a common address that redirects you to the configuration page of your wireless repeater. Sometimes when users want to access the configuration page using wireless mode in any other network, it can show you technical errors. So it will work like a web address for the same repeater. It will take you to the admin login page. If you want to open web access, then you just need to connect your device with repeater wireless or wired.
Then type myrepeater.net in the URL box and search it. A new configuration page will appear, so we can say that this is just a web address used to access the configuration page. But sometimes, due to many reasons, you can face issues.
Be sure that the IP Address you are using is correct and disable the VPN if you use it. So to solve slow or dead zone problems, you can use a wireless n repeater in your house to extend your existing network.