Fix timeout error.

client.py

@@ -762,6 +762,10 @@ class ServerJarClient(Application):
                     context = self.get_tls_context()
                     s = context.wrap_socket(raw, server_hostname=self.host)
 
+                # The connection timeout should not become an idle read timeout.
+                # Keep recv() blocking so quiet but healthy connections stay open.
+                s.settimeout(None)
+
                 with self.sock_lock:
                     self.sock = s
 

main.py

@@ -1008,6 +1008,16 @@ class SocketServer:
                 except (ConnectionResetError, OSError):
                     mgr.logger.info(
                         "[SYS] Client disconnected. From {}:{}".format(self.client_address[0], self.client_address[1]))
+                except Exception as e:
+                    mgr.logger.exception(
+                        "[SYS] Client handler error. From %s:%s",
+                        self.client_address[0],
+                        self.client_address[1],
+                    )
+                    try:
+                        self.request.sendall(f"[SYS:ERR] Server handler error: {e}\n".encode("utf-8"))
+                    except OSError:
+                        pass
                 finally:
                     stop_evt.set()
                     if log_q is not None: