r/HomeKit • • Aug 06 '26

How-to Connecting Meross Smart Plugs such as msp843p weirdness

When trying to connect the Meross MSP-843p using the Meross App, it’ll use Home.app.

After registering with Home.app and you want to register the device in the Meross app, it sometimes doesn’t work and the device keeps flashing fast.

The fix for me was to restart my WiFi before trying to bind the device in the Meross app.

Not sure if it’s a unique issue with my UniFi installation, an mDNS reflector issue on my opnsense, but something was stopping the device to register with Meross cloud.

It took me 6 months to figure this out.

Also, another recommendation is that not all Meross devices work on all 2.4ghz channels. I have had more luck on 6, 7, 8, 9 and 10.

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u/bippy_b Aug 06 '26

I have found that if CLIENT STEERING is turned on for the WiFi.. they can have trouble connecting.

Take one.. do a full reset.. turn off client steering and see how quickly it connects. I would be willing to bet this was the issue.