On 13.0 the network connection drop while installing and uninstalling plugins or stopping a jail

I was able to reproduce manually, and the UI is not reachable for about 5 to 15 seconds

After that, it goes back to the login

I have found a similar behavior on the API side when the API connection drops after stopping jail.

api2/test_270_jail.py::test_17_verify_exec_job PASSED
api2/test_270_jail.py::test_18_stop_jail PASSED
api2/test_270_jail.py::test_19_verify_jail_stopped FAILED
api2/test_270_jail.py::test_20_export_jail FAILED
api2/test_270_jail.py::test_21_verify_export_job_succeed FAILED
api2/test_270_jail.py::test_22_start_jail FAILED
api2/test_270_jail.py::test_23_wait_for_jail_to_be_up FAILED
api2/test_270_jail.py::test_24_rc_action FAILED
api2/test_270_jail.py::test_25_delete_jail FAILED

A bunch of tests after fails with this:

Error Message
requests.exceptions.ConnectionError: HTTPConnectionPool(host='10.238.238.218', port=80): Max retries exceeded with url: /api/v2.0/core/get_jobs/?id=388 (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x8061ba340>: Failed to establish a new connection: [Errno 61] Connection refused'))

Here is the whole output of test 19 https://builds.ixsystems.com/job/TrueNAS%2013.0%20Nightlies%20API%20Tests/984/testReport/api2/test_270_jail/test_19_verify_jail_stopped/ .

After a couple of seconds, the connection comes back. Unfortunately, this does not happen every time the API tests run but has been reproduced twice with the API test so far.

The API test did hang on deleting a jail once, and the job did timeout after 2 hours.

api2/test_270_jail.py::test_25_delete_jail Cancelling nested steps due to timeout