feat: Raise an exception if license is inaccessible

src/ansys/fluent/core/launcher/error_handler.py

@@ -5,6 +5,21 @@
 from ansys.fluent.core.utils.fluent_version import FluentVersion
 
 
+class InaccessibleAnsysLicense(RuntimeError):
+    """Raised when license is inaccessible."""
+
+    def __init__(self):
+        super().__init__("Ansys license is inaccessible.")
+
+
+def _license_error(exception):
+    exception_msg = "IOCP/Socket: Connection reset (An existing connection was forcibly closed by the remote host.\r\n -- 10054)"
+    if type(exception) == RuntimeError and exception.args[0] == exception_msg:
+        raise InaccessibleAnsysLicense()
+    else:
+        return False
+
+
 class InvalidPassword(ValueError):
     """Raised when password is invalid."""
 

src/ansys/fluent/core/services/interceptors.py

@@ -8,6 +8,7 @@
 from google.protobuf.message import Message
 import grpc
 
+from ansys.fluent.core.launcher.error_handler import _license_error
 from ansys.fluent.core.services.batch_ops import BatchOps
 
 network_logger: logging.Logger = logging.getLogger("pyfluent.networking")
@@ -109,7 +110,8 @@ def _intercept_call(
             grpc_ex = response.exception()
             ex = RuntimeError(grpc_ex.details())
             ex.__context__ = grpc_ex
-            raise ex from None
+            if not _license_error(ex):
+                raise ex from None
         return response
 
     def intercept_unary_unary(