A: Delete and reinstall from the official web page. Usually do not use aged APKs or outdated configuration documents. Winbox supports IPv6 connectivity. To connect with the routers IPv6 handle, it has to be put in square braces the same as in World-wide-web browsers when connecting to IPv6 server. Thanks https://winboxapp00986.blogsmine.com/36125005/5-essential-elements-for-winbox-app