Warning Socket Closed
Not sure what could be causing this issue, but I seem to keep getting warnings for closed web sockets. I am running home bridge on a hardwired Mac mini. 

**Terminal Activity**
[2020-12-22, 10:43:12 p.m.] Homebridge is running on port 50003.
[2020-12-22, 10:43:12 p.m.] [Security system] Saved state (Found)
[2020-12-22, 10:43:12 p.m.] [Security system] Current mode (Home)
[2020-12-22, 10:43:12 p.m.] [Security system] Arming delay (On)
[2020-12-22, 10:43:13 p.m.] [Family Room Hub] (Family Room Hub)INFO - Adding Accessory : Family Room Hub-TV
[2020-12-22, 10:43:13 p.m.] [Family Room Hub] (Family Room Hub)INFO - configuring Main TV Service
[2020-12-22, 10:43:13 p.m.] [Family Room Hub] (Family Room Hub)INFO - Creating TV Service
[2020-12-22, 10:43:13 p.m.] [Family Room Hub] (Family Room Hub)INFO - Creating Input Service - Apple TV 
[2020-12-22, 10:43:13 p.m.] [Family Room Hub] (Family Room Hub)INFO - Creating Input Service - PlayStation 
[2020-12-22, 10:43:13 p.m.] [Family Room Hub] (Family Room Hub)INFO - Creating Input Service - Xbox
[2020-12-22, 10:43:13 p.m.] [Family Room Hub] (Family Room Hub)INFO - Creating Input Service - Nintendo
[2020-12-22, 10:43:13 p.m.] [Family Room Hub] (Family Room Hub)WARNING - No main Activity that match config file found, default to first one
[2020-12-22, 10:43:13 p.m.] [Family Room Hub] (Family Room Hub)INFO - Configuring Main Activity Apple TV 
[2020-12-22, 10:43:13 p.m.] [Family Room Hub] (Family Room Hub)INFO - Creating TV Speaker Service
[2020-12-22, 10:43:13 p.m.] [Family Room Hub] (Family Room Hub)INFO - setupFoundAccessories - TV accessory added as external accessory
[2020-12-22, 10:43:13 p.m.] Family Room Hub-TV is running on port 51512.
[2020-12-22, 10:43:13 p.m.] Please add [Family Room Hub-TV] manually in Home app. Setup Code: 031-44-167
[2020-12-22, 10:43:13 p.m.] [Family Room Hub] (Theatre Room Hub)INFO - Adding Accessory : Theatre Room Hub-TV
[2020-12-22, 10:43:13 p.m.] [Family Room Hub] (Theatre Room Hub)INFO - configuring Main TV Service
[2020-12-22, 10:43:13 p.m.] [Family Room Hub] (Theatre Room Hub)INFO - Creating TV Service
[2020-12-22, 10:43:13 p.m.] [Family Room Hub] (Theatre Room Hub)INFO - Creating Input Service - - AirPlay -
[2020-12-22, 10:43:13 p.m.] [Family Room Hub] (Theatre Room Hub)INFO - Creating Input Service - - SNES Classic -
[2020-12-22, 10:43:13 p.m.] [Family Room Hub] (Theatre Room Hub)INFO - Creating Input Service - - Turntable -
[2020-12-22, 10:43:13 p.m.] [Family Room Hub] (Theatre Room Hub)INFO - Configuring Main Activity - Apple TV -
[2020-12-22, 10:43:13 p.m.] [Family Room Hub] (Theatre Room Hub)INFO - Creating TV Speaker Service
[2020-12-22, 10:43:13 p.m.] [Family Room Hub] (Theatre Room Hub)INFO - Creating Input Service - - Apple TV -
[2020-12-22, 10:43:13 p.m.] [Family Room Hub] (Theatre Room Hub)INFO - Creating Input Service - - Nintendo Switch -
[2020-12-22, 10:43:13 p.m.] [Family Room Hub] (Theatre Room Hub)INFO - setupFoundAccessories - TV accessory added as external accessory
[2020-12-22, 10:43:13 p.m.] Theatre Room Hub-TV is running on port 51513.
[2020-12-22, 10:43:13 p.m.] Please add [Theatre Room Hub-TV] manually in Home app. Setup Code: 031-44-167
[2020-12-22, 10:43:14 p.m.] [Family Room Hub] (Living Room Hub)INFO - Adding Accessory : Living Room Hub-TV
[2020-12-22, 10:43:14 p.m.] [Family Room Hub] (Living Room Hub)INFO - configuring Main TV Service
[2020-12-22, 10:43:14 p.m.] [Family Room Hub] (Living Room Hub)INFO - Creating TV Service
[2020-12-22, 10:43:14 p.m.] [Family Room Hub] (Living Room Hub)INFO - Creating Input Service -  Apple TV Upstairs
[2020-12-22, 10:43:14 p.m.] [Family Room Hub] (Living Room Hub)INFO - Creating Input Service - Turn On Fireplace
[2020-12-22, 10:43:14 p.m.] [Family Room Hub] (Living Room Hub)INFO - Creating Input Service - Bell Fibe Upstairs
[2020-12-22, 10:43:14 p.m.] [Family Room Hub] (Living Room Hub)WARNING - No main Activity that match config file found, default to first one
[2020-12-22, 10:43:14 p.m.] [Family Room Hub] (Living Room Hub)INFO - Configuring Main Activity  Apple TV Upstairs
[2020-12-22, 10:43:14 p.m.] [Family Room Hub] (Living Room Hub)INFO - Creating TV Speaker Service
[2020-12-22, 10:43:14 p.m.] [Family Room Hub] (Living Room Hub)INFO - setupFoundAccessories - TV accessory added as external accessory
[2020-12-22, 10:43:14 p.m.] [Family Room Hub] (Living Room Hub)INFO - Loading devices...
[2020-12-22, 10:43:14 p.m.] [Family Room Hub] (Living Room Hub)INFO - Discovered Device : Home Decorators Climate Control
[2020-12-22, 10:43:14 p.m.] Living Room Hub-TV is running on port 51514.
[2020-12-22, 10:43:14 p.m.] Please add [Living Room Hub-TV] manually in Home app. Setup Code: 031-44-167
[2020-12-22, 10:43:18 p.m.] [Family Room Hub] INFO - stopping hub discovery, hubs found : 192.168.4.130|Samsung 4K TV|16700695,192.168.4.41|BenQ Projector|14600754,192.168.4.35|Samsung TV|15142100
[2020-12-22, 10:43:18 p.m.] [Family Room Hub] (Config)INFO - received discovered hubs  192.168.4.130|Samsung 4K TV|16700695,192.168.4.41|BenQ Projector|14600754,192.168.4.35|Samsung TV|15142100
[2020-12-22, 10:43:18 p.m.] [Family Room Hub] (Config)ERROR - Multiple hubs found, you must use hubName or hubIP (only if it is fixed on your router) in your config : 192.168.4.130|Samsung 4K TV|16700695,192.168.4.41|BenQ Projector|14600754,192.168.4.35|Samsung TV|15142100- platform Config
[2020-12-23, 4:23:24 a.m.] [Family Room Hub] (Theatre Room Hub)WARNING - socket closed
[2020-12-23, 4:27:04 a.m.] [Family Room Hub] (Theatre Room Hub)WARNING - socket closed
[2020-12-23, 4:41:44 a.m.] [Family Room Hub] (Living Room Hub)WARNING - socket closed
[2020-12-23, 6:27:25 a.m.] [Family Room Hub] (Theatre Room Hub)WARNING - socket closed
[2020-12-23, 6:32:50 a.m.] [Family Room Hub] (Theatre Room Hub)WARNING - socket closed
[2020-12-23, 7:05:25 a.m.] [Family Room Hub] (Living Room Hub)WARNING - socket closed
[2020-12-23, 7:05:59 a.m.] [Family Room Hub] (Family Room Hub)WARNING - socket closed
[2020-12-23, 7:08:15 a.m.] [Family Room Hub] (Living Room Hub)WARNING - socket closed
[2020-12-23, 7:40:34 a.m.] [Family Room Hub] (Family Room Hub)WARNING - socket closed
[2020-12-23, 8:49:01 a.m.] [Family Room Hub] (Theatre Room Hub)WARNING - socket closed

**Config File**
    "platforms": [
  {
    "platform": "HarmonyHubWebSocket",
    "name": "Family Room Hub",
    "hubName": "Samsung 4K TV",
    "hubIP": "192.168.4.130",
    "mainActivity": "Apple TV",
    "otherPlatforms": [{
      "name": "Living Room Hub",
      "hubName": "Samsung TV",
      "hubIP": "192.168.4.35",
      "devicesToPublishAsAccessoriesSwitch": ["Home Decorators Climate Control"],
      "mainActivity": "Apple TV Upstairs"
      },
    {
      "name": "Theatre Room Hub",
      "hubName": "BenQ Projector",
			"hubIP": "192.168.4.41",
      "mainActivity": "- Apple TV -"
      },

The lights on the harmony hubs themselves never go red, and functionality remains in tact using both the harmony app, and the Apple Home app (which sometimes flips to updating or no response briefly, but then comes back quickly --not sure if this is a HomeKit bug or related to this since it happens to other devices as well--.