I have had similar experience.
(
But like 2 weeks later, i felt mental connection with him, then also a some energetic type.
Then i did all kinds of awesome ( and stupid ) experiments with it.
So yeah, what helped me was that i found my āconceptual communicationā part of the brain, with like one listen of animal telepathy, and then it kept being stimulated when I tried to connect with my dragon servitor.
So yeah donāt worry, and keep trying .