@Bediyev ,
If you are changing anything in Registries, its related operating systems. To reflect changes have to restart the server.
Coming to Main issue, I suspect that issue with network latency. Like different subnets (in between AOS and Client), authentication between two domains may be the reason. Please try to ping AOS server from a client machine, if the network ping time <=1 you are in safe zone.
Thanks.,
Ravi Theja Madisetty