HTTPS config location

Hi all,

I just changed my Tomato router interface connection from http to https with regenerate and save to nvram.

Im not sure if it was because CN was blank but I can no longer connect via http or https.

Telnet is still working so does anyone know where the configuration for the web interface exists and what files should I edit or delete to reconnect.

I'd prefer not to factory reset if I can avoid.

Thanks
Vex