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The original was posted on /r/homeassistant by /u/Resident-Variation21 on 2025-06-23 04:55:59+00:00.
I’ve been having the odd reliability issue with ZHA, so before I buy new devices (it’s happening to specific devices and my mesh is solid), I decided to make the jump to Z2M.
This is still in the early stages of network healing but some things I’ve noticed:
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it does feel a fair bit quicker in daily use. Especially commands to multiple rooms like “turn off all upstairs lights” feels much much quicker.
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I’m getting random weird slowdowns, like a light turning on 30 seconds after motion is detected. Often I’ve left the room by then. I am going to chalk this up to “weird network behaviour as the mesh builds” for now, though. I’m hopeful, and semi-expecting, that to go away over the coming days.
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updates are Z2M weakest point. By fair. In ZHA I could update 5 devices at once and not even notice it. In Z2M, I’m updating 1 device, and not only is it taking longer to update, the entire network is significantly slower. If anything ends up being a deal breaker - it’ll be this. I don’t update often but when I do, it’s 30 devices at once (because most of my devices are the same brand so get the same updates at the same time).