Does scanning work for anyone?

[chanchiem]

Describe the bug I have about 4 TP-Link bulbs in my network. I am able to manually do an arp-scan on my network and confirm that the devices exist (and therefore set the IP on the node to control it), but I'm unable to scan through the node configuration. Is this happening for anyone else as well?

To Reproduce Steps to reproduce the behavior: Create a Kasa node red node. Double click it Click on the scan button

Expected behavior There should be a list of devices

Screenshots If applicable, add screenshots to help explain your problem.

Scan results:

Desktop (please complete the following information):

• OS: [e.g. iOS] Windows 11
• Browser [e.g. chrome, safari] Chrome
• Version [e.g. 22]

[dgulliver]

Hi @chanchiem,

Yes I am having the same issue. I just updated to 1.0.1 hoping this resolved the issue but still get the error "No TP Link devices found" even though HA see's them no problem

I'm running node-red 3.0.2 in docker.

Desktop (please complete the following information): OS: [e.g. iOS] Windows 10 Browser [e.g. chrome, safari] Chrome Version [e.g. 22] 108.0.5359.125

[normanr]

Do the devices show up if you use the tplink-smarthome-api cli to search for them? (you can also try python-kasa's cli).

My devices didn't initially respond to (any) broadcast discovery packets, but then I remembered that I need to specifically allow broadcasts through my network firewall (and after that they showed up without any issues).

[dgulliver]

Do the devices show up if you use the tplink-smarthome-api cli to search for them? (you can also try python-kasa's cli).

My devices didn't initially respond to (any) broadcast discovery packets, but then I remembered that I need to specifically allow broadcasts through my network firewall (and after that they showed up without any issues).

Hi @normanr,

yeah when I performed tplink-smarthome-api search I got a list of devices:

[normanr]

Can you try running the same scan from within docker? What networking mode are you using for docker? Apparently bridge mode doesn't work, and host mode needs to be used instead, ref: https://github.com/node-red/node-red/issues/3432#issuecomment-1034141733

[dgulliver]

Can you try running the same scan from within docker? What networking mode are you using for docker? Apparently bridge mode doesn't work, and host mode needs to be used instead, ref: node-red/node-red#3432 (comment)

Hi @normanr,

My current node-red container as bridge mode. I installed a new node-red container with host for networking mode instead, installed node-red-contrib-tplink, placed a kasa node on the flow hit the search button and after a few moments a list of my available devices appeared .

So as you say looks like node-red should be installed with host mode instead.

@chanchiem, Is this the same for you?

Thanks normanr!

Regards Darren

[UNOPARATOR]

@dgulliver, thanks for the suggestion, I was having the same error with my Node-RED running in docker (in unRAID) for awhile, but I don't remember changing networking mode at any time. I might be remembering it working while my TP-Link flow as running on my RaspberryPI and when I migrated my flow, I never bothered to check if it was working... Anyway, thank you again. :)