Im using Mikrotik as a Controller for My Hotspot Authentication using a Certificate bought from Geotrust - Rapidssl.
However im still having issues where clients are getting certificate not trusted errors.
I don’t know who GeoTrust is. Are they in the root certificate list shipped with browsers or operating systems? If not, you’re going to have to also install the certificate chain to something that is.
I never tried this with Mikrotik, but in apache I have to use different configuration directives for the intermediate certificate … so let us know if it works.