Zigbee network is a mess...... I think it might be because of "null" devices

Just read your comment about a custom app which refreshes your devices every X minutes. Would you mind sharing the code? I'm interested in doing this to see if it makes a difference to some twitchy Xiaomi gear.

This doesn't help the Xiaomi gear, if you run my drivers on them this is already done at the most optimum times possible. Sleepy end devices can't receive commands all the time, only when they checkin and messages are only guaranteed to be left in the queue on the repeating devices for 7.68 seconds. Timing is everything.

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