When WCF blocks a webpage, this error appears:
This is normal according to this application note:
https://www.draytek.com/support/knowledge-base/5205 (See paragraph 6)
OK, so how do I take advantage of the administration page? See below:
Reply from DrayTek HQ
It’s normal , the browser expects certificate matching the domain blocked instead of the router’s certificate. It can only be overcome by Vigor acting as the TLS proxy, which isn’t supported yet.