Mustafa Simsek

Thanks for answer. I use Windows Server 2019 Standard. i'll check the link and TCP/IP connections limit.

Thanks for answer. 1. Server's ram and cpu enough for ds server. There is enough resources. 2. i run "netstat -a" command and see clients. But i couldn't check in error status. is there any other commands to run and check? 3. No, Server doesn't clean up. How could i cleanup stale connections?

Hi, i have a mobile app, using datasnap server. Datasnap Server : A vcl standalone .exe program. Datasnap server (no rest), DBX and SQL Server connection. Client : FMX app, Android clients and TClientDataSet. A while before, I have 20-25 clients, there was no problem. But android client numbers increase, 190-200. Server running awhile but about one day later, it didn't response anything. Clients doesn't connect to server. I close and open datasnap server program. Then clients connect and operate again. How could i solve this? object DSServer1: TDSServer Left = 96 Top = 11 end object DSTCPServerTransport1: TDSTCPServerTransport PoolSize = 250 Server = DSServer1 Filters = <> AuthenticationManager = DSAuthenticationManager1 Left = 96 Top = 73 end object DSAuthenticationManager1: TDSAuthenticationManager OnUserAuthenticate = DSAuthenticationManager1UserAuthenticate Roles = <> Left = 96 Top = 197 end object DSServerClass1: TDSServerClass OnGetClass = DSServerClass1GetClass Server = DSServer1 Left = 200 Top = 11 end I increase Poolsize to 250. But it didn't solve problem. Thanks.