I/O error
Server crashed ?
Network / firewall ?

failed on teardown with "firebird.driver.types.DatabaseError: Unable to complete network request to host "localhost".
-Failed to establish a connection."

LOG DETAILS:

2025-07-13 15:59:32.888
2025-07-13 15:59:32.888 act = <firebird.qa.plugin.Action object at [hex]>
2025-07-13 15:59:32.888 tmp_fdb = WindowsPath('H:/QA/temp/qa2024.tmp/fbqa/test_11612/tmp_gh_8649.fdb')
2025-07-13 15:59:32.888
2025-07-13 15:59:32.888     @pytest.mark.version('>=4.0.6')
2025-07-13 15:59:32.889     def test_1(act: Action, tmp_fdb: Path):
2025-07-13 15:59:32.889
2025-07-13 15:59:32.889         test_script = f"""
2025-07-13 15:59:32.889             set term ^;
2025-07-13 15:59:32.889             create trigger trg_connect on connect as
2025-07-13 15:59:32.889                 declare id int;
2025-07-13 15:59:32.889             begin
2025-07-13 15:59:32.889                 execute statement 'select 1 from rdb$database'
2025-07-13 15:59:32.889                 on external 'local

[...SKIPPED...]

07-13 15:59:32.897
2025-07-13 15:59:32.897 self = <firebird.driver.interfaces.iProvider object at [hex]>
2025-07-13 15:59:32.897
2025-07-13 15:59:32.897     def _check(self) -> None:
2025-07-13 15:59:32.897         state = self.status.get_state()
2025-07-13 15:59:32.897         if StateFlag.ERRORS in state:
2025-07-13 15:59:32.897 >           raise self.__report(DatabaseError, self.status.get_errors())
2025-07-13 15:59:32.897 E           firebird.driver.types.DatabaseError: Unable to complete network request to host "localhost".
2025-07-13 15:59:32.897 E           -Failed to establish a connection.
2025-07-13 15:59:32.897
2025-07-13 15:59:32.897 C:\Python3x\Lib\site-packages\firebird\driver\interfaces.py:113: DatabaseError
2025-07-13 15:59:32.897 ---------------------------- Captured stdout setup ----------------------------
2025-07-13 15:59:32.897 Creating db: localhost:H:\QA\temp\qa2024.tmp\fbqa\test_11612\test.fdb [page_size=None, sql_dialect=None, charset='NONE', user=SYSDBA, password=masterkey]