After almost a year of use one of my TP-LINK HS103 is experiencing a COMMUNICATION ERROR. My other HS103 continue to function correctly.

I am able to control it with the Kasa iOS app (LOCAL ONLY) but openHAB is no longer able to control it.

I deleted it from openHAB after a lengthy delay openHAB rediscovered it but after it was added back into openHAB it went offline again.

I have it blocked from the internet so no firmware updates should have taken place.

  • hardware version 5.0
  • feature TIM
  • sofware version 1.0.3 Build 201015 Rel.142523
  • model HS103(US)
  • device name Smart Wi-Fi Plug Mini

Using TP-LINK Smarthome Binding 3.0.2

I have not made any changes to my openHAB setup and have not altered my wifi router.

Any suggestions would be much appreciated.

Did the “bad” unit get a new IP address from the DHCP server by chance?

Nope. I have assigned static IP address for my smart home devices.

Try placing the device physical closer to your wifi acces point and see if that makes a difference.If that fixes it, it could mean something is interfering with your hs103.

will do.

I moved the HS103.

openHAB once again found it.

I added the HS103 to openHAB

Once added the following was displayed within openHAB.


And then it changes to the following.

No route to host (Host unreachable)

Please note that the Kasa iOS app can control the HS103 (LOCAL ONLY)

I then changed the power strip it was plugged into and it “SEEMED” to start working again BUT each time I turned on or off the HS103 I would cause a COMMUNICATION_ERROR which lasted for a few seconds.

Here is output from the events.log file.

2022-08-24 12:46:30.420 [INFO ] [openhab.event.ItemStateChangedEvent ] - Item 'bedroomlamp' changed from UNDEF to ON

2022-08-24 12:46:45.994 [INFO ] [openhab.event.ItemCommandEvent ] - Item 'bedroomlamp' received command OFF

2022-08-24 12:46:45.996 [INFO ] [penhab.event.ItemStatePredictedEvent] - Item 'bedroomlamp' predicted to become OFF

2022-08-24 12:46:46.002 [INFO ] [openhab.event.ItemStateChangedEvent ] - Item 'bedroomlamp' changed from ON to OFF

2022-08-24 12:46:50.333 [INFO ] [ab.event.ThingStatusInfoChangedEvent] - Thing 'tplinksmarthome:hs103:xxxxxx' changed from ONLINE to OFFLINE (COMMUNICATION_ERROR): Read timed out

2022-08-24 12:46:50.338 [INFO ] [openhab.event.ItemStateChangedEvent ] - Item 'bedroomlamp' changed from OFF to UNDEF

2022-08-24 12:47:00.379 [INFO ] [ab.event.ThingStatusInfoChangedEvent] - Thing 'tplinksmarthome:hs103:xxxxxx' changed from OFFLINE (COMMUNICATION_ERROR): Read timed out to ONLINE

2022-08-24 12:47:00.382 [INFO ] [openhab.event.ItemStateChangedEvent ] - Item 'bedroomlamp' changed from UNDEF to OFF