I have a network with 1 database server 11.2.0.3 64 bit which also includes the 32 bit 11.2.0.3 client (I had to use the 32 bit so the windows application would work). I also have 5 client computers all running 11.2.0.3 client. Previously all client computers connected to the server with no issues so this is not a firewall issue. Recently I've been having intermittent connection issues with the server database from different clients.
The error is ORA-12541: TNS:no listener.
When I get this error if I restart the clients the majority of times the error is fixed and the client connects.
Is there a way that I can prevent this from happening.