I have installed a trusted CA SSL certificate into our 2820, and it shows up just fine. However, the 2820 presents its own local certificate to any SSL connection to its management interface (giving rise to the normal certificate warnings in browsers). How can the 2820 be forced to show the trusted CA certificate instead, or is this just another bug to add to the 2820's long list?

I encountered the same time a while ago.

I was told by Draytek support, that you could not use a signed cert for the management interface.

Pitty I know.