Powerline causing home lights to blink

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Powerline causing home lights to blink

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seancross

2022-10-22 13:23:02 - last edited 2022-10-24 12:50:03

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Powerline causing home lights to blink

2022-10-22 13:23:02 - last edited 2022-10-24 12:50:03

Model: TL-PA9020P KIT

Hardware Version:

Firmware Version:

I've recently purchased a TL-PA9020P kit in order to replace a wifi connection to a server that's in a concrete-walled room. The TL-PA9020P gives much better performance when compared to wifi, however I've noticed an issue.

Randomly, certain lights in my house will flicker briefly. These are low-powered LED lights. I highly suspect it's the TP-Link devices, because the lights stop flickering when I remove the TP-Link devices.

The lights flicker once every 5-10 minutes, but with a very wide distribution -- sometimes the delay in between blinks is just a few seconds, and sometimes it's several minutes.

How can I prevent ths TP-Link device from causing interference with my house lights? Can I place it into a different modulation mode that's less likely to cause issues? Is there any sort of configuration screen for TL-PA9020P devices? What are my options?

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seancross

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2022-10-24 12:49:53 - last edited 2022-10-24 12:50:03

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Re:Powerline causing home lights to blink-Solution

2022-10-24 12:49:53 - last edited 2022-10-24 12:50:03

For what it's worth, this does seem to be a profound coincidence.

The flashing lights are new, and started about four days ago. I installed the TP-Link device five days ago. The house has had no other changes in the past year.

However, the LED lights are on a completely separate circuit. The first thing I tried was unplugging the Ethernet device, which didn't help. Then I tried unplugging the TP-Link devices, which also didn't help.

The current working theory is that it was 100% a coincidence, and the flashing lights are due to oxidation on the 3-way light switches that go to that circuit. These switches are probably aging, and they are probably leaking. We happened to use one of the two 3-way switches that doesn't get much use, and some of the accumulated dust may have created a partial circuit, allowing the light to energise very slowly.

So in summary: The Powerline device has been behaving well, it was just bad timing that made us think the issue was related to the installation.

Powerline causing home lights to blink

Powerline causing home lights to blink

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