Dendrobium griffithianum seems to be too sleepy

[Maru777]

Hello everyone. I need a bit of advice with this little plant I bought. It was being killed by my local plant shop (they specialize in this when it comes to orchids) and so I bought it and got it home in about April. It had one leaf that was yellowing and fell that week. I read up on it and all I could find is that it would likely sleep for about 2-3 months in winter. Now I thought maybe it was brought from somewhere else and it was still confused so I left it be, other than that it has no leaves it looks ok. But now it’s been 3 months since I had it, not to mention it’s the height of summer and it’s still doing nothing. Not declining but not sprouting anything new either. Do I just leave it be? Should I change something? It lives on a screened patio at about 30-33 C, 65-80% humidity and about 3,000 FC sun. Should I bring it inside where there is AC to trick it into thinking it’s winter so it would then wake up?