If the user is unable to access the Web interface of tplinkrepeater.net, he must check the Internet IP address of the device. In case, the Internet IP address is invalid then it will be shown as 0.0.0.0 that could also be the reason behind the failure of accessing the web interface of tp-link repeaters. Even, if the Internet IP address is valid, the above issue could happen of which the basic resolution is to restart you are all the networking devices.