#Increased occurrence of MAC_CHANNEL_ACCESS failures

1 messages · Page 1 of 1 (latest)

median nimbus
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I've been running Home Assistant for years now without much issue. I'm running HAOS on a Raspberry Pi (on an SSD, not an SD card). I have my Zigbee and Z-Wave dongles both connected via USB extensions, so neither is plugged directly into the Pi.

All of a sudden over the last two weeks or so, my system will only function for like 2 days at a time before most of my Zigbee devices become unresponsive with MAC_CHANNEL_ACCESS errors.

I'm not aware of any changes on my home network and I haven't touched a thing in ZHA in forever. I can fix it quickly by unplugging the dongle for a few seconds and plugging it back in, but it's getting very tiresome having to do this every couple days, especially when it can happen at any time.

Has anyone else been experiencing this recently? Any advice would be much appreciated.

median nimbus
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Anyone have any suggestions?

distant moat
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Maybe 2.4ghz channel overlap. Set wifi to channel 1 or 11, and your zigbee channel to 25. Also it could help to put the zigbee and z-wave dongles on a powered usb-hub. Pi power delivery is not optimal..

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Make shure that HA and dongles are using the latest software available.

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For info, how did you connect the ssd? If using usb then put it also on the powered hub. What version of the Pi are you using?

median nimbus
# distant moat For info, how did you connect the ssd? If using usb then put it also on the powe...

It's an Argon case for a Pi 4 using an M2 SSD. I can try migrating to channel 25, but that will need to wait for a weekend since ZHA says it's experimental and everything might not migrate properly.

As far as a powered USB hub goes, would something like this do the trick? https://www.amazon.com/atolla-Charging-Splitter-Individual-Switches/dp/B083XTKV8V

distant moat
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should work, yes