getting ssl error after a new installation of utm9

I've been using asg v8 for a year or so.., ant it has beed working perfecly so far.
So I've been starting on testin utm9.
But after a cleen install I get ssl error: ssl_error_rx_record_too_long
If I refresh the page like 100 times I get inn. And can log in.
And then after I litle while.., like 1-2 min I get disconnected. Or the page freezes and when i refresh i get ssl error again.

Is there something to do ?
I'm running the latest version 9.004