Thanks Jason for your reply. 
I use Avast antivirus and after the latest update it tells me the “malicious” software thing on every RTG casino i tried to download and it disconnects directly from website.
Ofcourse i downloaded the casino by shutting down the antivirus.
After shutting down the antivirus, the software +/- 500 kb is on download by 5 kb/s till 10 kb/s.
I have arround 1,2 Mb/s download so it is also slowing down the download proces aswell.
I never had this before the latest update from them, maybe there are more antiviruses doing this in new updates.