I've recently noticed that my OctoPrint log has been flooded with MQTT messages of constant disconnect/connect messages every second, as shown below. I don't know if this started when upgrading to python 3 or OctoPrint 1.4.1+, but was curious if anyone else is also seeing this? Trying to figure out why it's happening.
2020-08-29 07:25:21,094 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:25:22,357 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:25:23,325 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:25:24,431 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:25:25,482 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:25:26,534 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:25:27,562 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:25:28,666 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:25:29,696 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:25:30,805 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:25:31,836 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:25:32,941 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:25:33,968 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:25:35,065 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:25:36,307 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:25:37,437 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:25:38,497 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:25:39,593 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:25:40,652 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:25:41,768 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:25:42,829 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:25:43,892 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:25:44,951 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:25:46,043 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:25:47,097 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:25:48,239 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:25:49,300 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:25:50,432 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:25:51,460 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:25:52,586 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:25:53,616 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:25:54,727 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:25:55,754 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:25:56,896 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:25:57,926 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:25:59,042 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:26:00,073 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:26:01,229 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:26:02,285 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:26:03,433 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:26:04,493 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:26:05,638 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:26:06,698 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:26:07,814 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:26:08,873 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:26:10,009 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:26:11,068 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:26:12,219 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:26:13,279 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:26:14,433 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:26:15,496 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:26:16,645 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:26:17,677 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:26:18,835 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:26:19,866 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:26:20,993 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:26:22,034 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:26:23,190 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:26:24,243 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:26:25,410 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:26:26,486 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:26:27,642 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:26:28,698 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:26:29,854 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:26:30,915 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:26:32,054 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:26:33,111 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:26:34,270 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:26:35,334 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:26:36,487 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:26:37,516 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:26:38,633 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:26:39,667 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:26:40,823 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:26:41,851 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:26:42,968 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:26:43,999 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:26:45,148 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:26:46,204 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:26:47,368 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:26:48,451 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:26:49,591 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:26:50,649 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:26:51,803 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:26:52,859 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:26:54,021 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:26:55,081 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:26:56,227 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:26:57,287 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:26:58,445 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:26:59,511 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:27:00,675 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:27:01,711 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:27:02,872 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:27:03,902 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:27:05,024 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:27:06,051 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:27:07,202 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:27:08,262 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:27:09,436 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:27:10,496 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:27:11,645 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:27:12,701 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:27:13,845 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:27:14,905 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:27:16,053 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:27:17,114 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:27:18,263 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:27:19,333 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:27:20,506 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:27:21,535 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:27:22,689 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:27:23,723 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:27:24,847 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:27:25,876 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:27:27,036 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:27:28,065 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:27:29,241 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:27:30,303 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:27:31,470 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:27:32,524 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:27:33,681 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:27:34,738 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:27:35,891 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:27:36,950 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:27:38,115 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:27:39,177 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:27:40,323 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:27:41,404 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:27:42,561 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:27:43,591 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:27:44,742 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:27:45,768 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:27:46,883 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:27:47,916 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:27:49,082 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:27:50,119 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:27:51,276 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:27:52,333 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:27:53,503 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:27:54,562 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:27:55,723 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:27:56,784 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:27:57,951 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:27:59,017 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:28:00,171 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:28:01,230 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:28:02,366 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:28:03,440 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:28:04,617 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:28:05,643 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:28:06,797 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:28:07,828 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:28:09,010 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:28:10,036 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:28:11,150 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:28:12,183 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:28:13,341 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:28:14,426 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:28:15,568 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker
2020-08-29 07:28:16,626 - octoprint.plugins.mqtt - ERROR - Disconnected from mqtt broker for unknown reasons (network error?), rc = 1
2020-08-29 07:28:17,768 - octoprint.plugins.mqtt - INFO - Connected to mqtt broker