Me again, just in case someone new pops by. Still have large numbers of message delivery failures. There is another extract, any help is welcomed.
2020-11-20 16:00:03 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:00:03 DEBUG (MainThread) [homeassistant.components.zha.entity] light.sofa: polling current state - from cache: False
2020-11-20 16:00:03 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x139C:11:0x0008]: received attribute: 0 update with value: 10
2020-11-20 16:00:08 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x139C:11:0x0300]: failed to get attributes '['color_temperature', 'current_x', 'current_y', 'color_loop_active']' on 'light_color' cluster:
2020-11-20 16:00:28 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x10C4:1:0x0020]: Received 33 tsn command 'checkin': []
2020-11-20 16:00:28 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x10C4:1:0x0020]: command failed: 'checkin_response' args: '(True, 8)' kwargs '{'tsn': 33}' exception: '[0x10c4:1:0x0020]: Message send failure'
2020-11-20 16:00:29 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x10C4:1:0x0020]: executed 'set_long_poll_interval' command with args: '(24,)' kwargs: '{}' result: [2, <Status.SUCCESS: 0>]
2020-11-20 16:00:33 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:01:03 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:01:33 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:01:40 DEBUG (MainThread) [homeassistant.components.zha.entity] light.landing_ceiling_light: polling current state - from cache: False
2020-11-20 16:01:40 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0xA3C3:11:0x0008]: received attribute: 0 update with value: 10
2020-11-20 16:01:49 DEBUG (MainThread) [homeassistant.components.zha.entity] light.kitchen_ceiling_light_2: polling current state - from cache: False
2020-11-20 16:01:49 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x8A79:11:0x0008]: received attribute: 0 update with value: 96
2020-11-20 16:02:03 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:02:33 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:02:40 DEBUG (MainThread) [homeassistant.components.zha.entity] light.fish_tank: polling current state - from cache: False
2020-11-20 16:02:45 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0xF2FF:11:0x0008]: received attribute: 0 update with value: 254
2020-11-20 16:03:03 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:03:29 DEBUG (MainThread) [homeassistant.components.zha.entity] light.bedroom_ceiling_light: polling current state - from cache: False
2020-11-20 16:03:29 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x1117:11:0x0008]: received attribute: 0 update with value: 32
2020-11-20 16:03:29 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x1117:11:0x0300]: failed to get attributes '['color_temperature', 'current_x', 'current_y', 'color_loop_active']' on 'light_color' cluster: [0x1117:11:0x0300]: Message send failure
2020-11-20 16:03:33 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:03:37 DEBUG (MainThread) [homeassistant.components.zha.entity] light.hallway_ceiling_light: polling current state - from cache: False
2020-11-20 16:03:47 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0xD5CF:11:0x0300]: failed to get attributes '['color_temperature', 'current_x', 'current_y', 'color_loop_active']' on 'light_color' cluster:
2020-11-20 16:04:03 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:04:19 DEBUG (MainThread) [homeassistant.components.zha.entity] light.planter: polling current state - from cache: False
2020-11-20 16:04:20 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0xC4CB:11:0x0008]: received attribute: 0 update with value: 254
2020-11-20 16:04:20 DEBUG (MainThread) [homeassistant.components.zha.entity] light.sofa: polling current state - from cache: False
2020-11-20 16:04:20 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x139C:11:0x0008]: received attribute: 0 update with value: 10
2020-11-20 16:04:20 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x139C:11:0x0300]: failed to get attributes '['color_temperature', 'current_x', 'current_y', 'color_loop_active']' on 'light_color' cluster: [0x139c:11:0x0300]: Message send failure
2020-11-20 16:04:33 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:05:01 DEBUG (MainThread) [homeassistant.components.zha.entity] light.landing_ceiling_light: polling current state - from cache: False
2020-11-20 16:05:02 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0xA3C3:11:0x0300]: failed to get attributes '['color_temperature', 'current_x', 'current_y', 'color_loop_active']' on 'light_color' cluster: [0xa3c3:11:0x0300]: Message send failure
2020-11-20 16:05:03 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:05:33 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:06:03 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:06:33 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:06:33 DEBUG (MainThread) [homeassistant.components.zha.entity] light.fish_tank: polling current state - from cache: False
2020-11-20 16:06:43 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0xF2FF:11:0x0300]: failed to get attributes '['color_temperature', 'current_x', 'current_y', 'color_loop_active']' on 'light_color' cluster:
2020-11-20 16:06:49 DEBUG (MainThread) [homeassistant.components.zha.entity] light.kitchen_ceiling_light_2: polling current state - from cache: False
2020-11-20 16:06:49 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x8A79:11:0x0008]: received attribute: 0 update with value: 96
2020-11-20 16:07:03 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:07:33 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:07:42 DEBUG (MainThread) [homeassistant.components.zha.entity] light.bedroom_ceiling_light: polling current state - from cache: False
2020-11-20 16:07:47 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x1117:11:0x0300]: failed to get attributes '['color_temperature', 'current_x', 'current_y', 'color_loop_active']' on 'light_color' cluster:
2020-11-20 16:08:03 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:08:18 DEBUG (MainThread) [homeassistant.components.zha.entity] light.hallway_ceiling_light: polling current state - from cache: False
2020-11-20 16:08:18 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0xD5CF:11:0x0008]: received attribute: 0 update with value: 36
2020-11-20 16:08:22 DEBUG (MainThread) [homeassistant.components.zha.entity] light.landing_ceiling_light: polling current state - from cache: False
2020-11-20 16:08:22 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0xA3C3:11:0x0008]: received attribute: 0 update with value: 10
2020-11-20 16:08:33 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:08:37 DEBUG (MainThread) [homeassistant.components.zha.entity] light.sofa: polling current state - from cache: False
2020-11-20 16:09:03 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:09:07 DEBUG (MainThread) [homeassistant.components.zha.entity] light.planter: polling current state - from cache: False
2020-11-20 16:09:08 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0xC4CB:11:0x0300]: failed to get attributes '['color_temperature', 'current_x', 'current_y', 'color_loop_active']' on 'light_color' cluster: [0xc4cb:11:0x0300]: Message send failure
2020-11-20 16:09:33 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:10:03 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:10:26 DEBUG (MainThread) [homeassistant.components.zha.entity] light.fish_tank: polling current state - from cache: False
2020-11-20 16:10:31 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0xF2FF:11:0x0300]: failed to get attributes '['color_temperature', 'current_x', 'current_y', 'color_loop_active']' on 'light_color' cluster: [0xf2ff:11:0x0300]: Message send failure
2020-11-20 16:10:33 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:10:38 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0xF2FF:11:0x0008]: command failed: 'move_to_level_with_on_off' args: '(254, 20.0)' kwargs '{}' exception: ''
2020-11-20 16:10:38 DEBUG (MainThread) [homeassistant.components.zha.entity] light.fish_tank: turned on: {'move_to_level_with_on_off': TimeoutError()}
2020-11-20 16:10:38 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0xF2FF:11:0x0006]: executed 'on' command with args: '()' kwargs: '{}' result: [1, <Status.SUCCESS: 0>]
2020-11-20 16:10:38 DEBUG (MainThread) [homeassistant.components.zha.entity] light.fish_tank: turned on: {'on_off': [1, <Status.SUCCESS: 0>]}
2020-11-20 16:10:47 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0xAC17:1:0x0020]: Received 111 tsn command 'checkin': []
2020-11-20 16:10:48 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0xAC17:1:0x0020]: executed 'checkin_response' command with args: '(True, 8)' kwargs: '{'tsn': 111}' result: [0, <Status.SUCCESS: 0>]
2020-11-20 16:10:48 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0xAC17:1:0x0020]: executed 'set_long_poll_interval' command with args: '(24,)' kwargs: '{}' result: [2, <Status.SUCCESS: 0>]
2020-11-20 16:11:03 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:11:33 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:11:43 DEBUG (MainThread) [homeassistant.components.zha.entity] light.landing_ceiling_light: polling current state - from cache: False
2020-11-20 16:11:43 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0xA3C3:11:0x0008]: received attribute: 0 update with value: 10
2020-11-20 16:11:49 DEBUG (MainThread) [homeassistant.components.zha.entity] light.kitchen_ceiling_light_2: polling current state - from cache: False
2020-11-20 16:11:49 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x8A79:11:0x0008]: received attribute: 0 update with value: 96
2020-11-20 16:11:50 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x8A79:11:0x0300]: failed to get attributes '['color_temperature', 'current_x', 'current_y', 'color_loop_active']' on 'light_color' cluster: [0x8a79:11:0x0300]: Message send failure
2020-11-20 16:11:55 DEBUG (MainThread) [homeassistant.components.zha.entity] light.bedroom_ceiling_light: polling current state - from cache: False
2020-11-20 16:11:55 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x1117:11:0x0008]: received attribute: 0 update with value: 32
2020-11-20 16:12:00 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x1117:11:0x0300]: failed to get attributes '['color_temperature', 'current_x', 'current_y', 'color_loop_active']' on 'light_color' cluster:
2020-11-20 16:12:03 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:12:27 DEBUG (MainThread) [homeassistant.components.zha.entity] light.kitchen_ceiling_light_1: polling current state - from cache: False
2020-11-20 16:12:28 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x098B:11:0x0008]: received attribute: 0 update with value: 89
2020-11-20 16:12:33 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:12:54 DEBUG (MainThread) [homeassistant.components.zha.entity] light.sofa: polling current state - from cache: False
2020-11-20 16:12:59 DEBUG (MainThread) [homeassistant.components.zha.entity] light.hallway_ceiling_light: polling current state - from cache: False
2020-11-20 16:12:59 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0xD5CF:11:0x0008]: received attribute: 0 update with value: 36
2020-11-20 16:13:03 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:13:04 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x139C:11:0x0300]: failed to get attributes '['color_temperature', 'current_x', 'current_y', 'color_loop_active']' on 'light_color' cluster:
2020-11-20 16:13:04 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0xD5CF:11:0x0300]: failed to get attributes '['color_temperature', 'current_x', 'current_y', 'color_loop_active']' on 'light_color' cluster:
2020-11-20 16:13:32 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x6D16:1:0x0500]: Updated alarm state: ZoneStatus.Alarm_2
2020-11-20 16:13:32 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0xA3C3:11:0x0006]: command failed: 'on' args: '()' kwargs '{}' exception: '[0xa3c3:11:0x0006]: Message send failure'
2020-11-20 16:13:32 DEBUG (MainThread) [homeassistant.components.zha.entity] light.landing_ceiling_light: turned on: {'on_off': DeliveryError('[0xa3c3:11:0x0006]: Message send failure')}
2020-11-20 16:13:32 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0xA3C3:11:0x0006]: command failed: 'on' args: '()' kwargs '{}' exception: '[0xa3c3:11:0x0006]: Message send failure'
2020-11-20 16:13:32 DEBUG (MainThread) [homeassistant.components.zha.entity] light.landing_ceiling_light: turned on: {'on_off': DeliveryError('[0xa3c3:11:0x0006]: Message send failure')}
2020-11-20 16:13:32 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0xA3C3:11:0x0006]: executed 'on' command with args: '()' kwargs: '{}' result: [1, <Status.SUCCESS: 0>]
2020-11-20 16:13:32 DEBUG (MainThread) [homeassistant.components.zha.entity] light.landing_ceiling_light: turned on: {'on_off': [1, <Status.SUCCESS: 0>]}
2020-11-20 16:13:33 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0xA3C3:11:0x0008]: executed 'move_to_level_with_on_off' command with args: '(249, 10.0)' kwargs: '{}' result: [4, <Status.SUCCESS: 0>]
2020-11-20 16:13:33 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0xA3C3:11:0x0006]: executed 'on' command with args: '()' kwargs: '{}' result: [1, <Status.SUCCESS: 0>]
2020-11-20 16:13:33 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:13:33 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0xA3C3:11:0x0300]: executed 'move_to_color_temp' command with args: '(175, 10.0)' kwargs: '{}' result: [10, <Status.SUCCESS: 0>]
2020-11-20 16:13:33 DEBUG (MainThread) [homeassistant.components.zha.entity] light.landing_ceiling_light: turned on: {'move_to_level_with_on_off': [4, <Status.SUCCESS: 0>], 'on_off': [1, <Status.SUCCESS: 0>], 'move_to_color_temp': [10, <Status.SUCCESS: 0>]}
2020-11-20 16:13:48 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x6D16:1:0x0500]: Updated alarm state: ZoneStatus.0
2020-11-20 16:13:55 DEBUG (MainThread) [homeassistant.components.zha.entity] light.planter: polling current state - from cache: False
2020-11-20 16:13:55 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0xC4CB:11:0x0008]: received attribute: 0 update with value: 254
2020-11-20 16:14:03 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x9881:1:0x0b04]: async_update
2020-11-20 16:14:13 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x6D16:1:0x0500]: Updated alarm state: ZoneStatus.Alarm_2
2020-11-20 16:14:16 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x5B25:1:0x0500]: Updated alarm state: ZoneStatus.Alarm_1
2020-11-20 16:14:17 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x1117:11:0x0006]: command failed: 'on' args: '()' kwargs '{}' exception: '[0x1117:11:0x0006]: Message send failure'
2020-11-20 16:14:17 DEBUG (MainThread) [homeassistant.components.zha.entity] light.bedroom_ceiling_light: turned on: {'on_off': DeliveryError('[0x1117:11:0x0006]: Message send failure')}
2020-11-20 16:14:17 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x1117:11:0x0006]: command failed: 'on' args: '()' kwargs '{}' exception: '[0x1117:11:0x0006]: Message send failure'
2020-11-20 16:14:17 DEBUG (MainThread) [homeassistant.components.zha.entity] light.bedroom_ceiling_light: turned on: {'on_off': DeliveryError('[0x1117:11:0x0006]: Message send failure')}
2020-11-20 16:14:17 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x1117:11:0x0006]: command failed: 'on' args: '()' kwargs '{}' exception: '[0x1117:11:0x0006]: Message send failure'
2020-11-20 16:14:17 DEBUG (MainThread) [homeassistant.components.zha.entity] light.bedroom_ceiling_light: turned on: {'on_off': DeliveryError('[0x1117:11:0x0006]: Message send failure')}
2020-11-20 16:14:17 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x1117:11:0x0006]: command failed: 'on' args: '()' kwargs '{}' exception: '[0x1117:11:0x0006]: Message send failure'
2020-11-20 16:14:17 DEBUG (MainThread) [homeassistant.components.zha.entity] light.bedroom_ceiling_light: turned on: {'on_off': DeliveryError('[0x1117:11:0x0006]: Message send failure')}
2020-11-20 16:14:17 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x1117:11:0x0006]: command failed: 'on' args: '()' kwargs '{}' exception: '[0x1117:11:0x0006]: Message send failure'
2020-11-20 16:14:17 DEBUG (MainThread) [homeassistant.components.zha.entity] light.bedroom_ceiling_light: turned on: {'on_off': DeliveryError('[0x1117:11:0x0006]: Message send failure')}
2020-11-20 16:14:18 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x1117:11:0x0006]: executed 'on' command with args: '()' kwargs: '{}' result: [1, <Status.SUCCESS: 0>]
2020-11-20 16:14:18 DEBUG (MainThread) [homeassistant.components.zha.entity] light.bedroom_ceiling_light: turned on: {'on_off': [1, <Status.SUCCESS: 0>]}
2020-11-20 16:14:18 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x1117:11:0x0008]: command failed: 'move_to_level_with_on_off' args: '(249, 10.0)' kwargs '{}' exception: '[0x1117:11:0x0008]: Message send failure'
2020-11-20 16:14:18 DEBUG (MainThread) [homeassistant.components.zha.entity] light.bedroom_ceiling_light: turned on: {'move_to_level_with_on_off': DeliveryError('[0x1117:11:0x0008]: Message send failure')}
2020-11-20 16:14:18 DEBUG (MainThread) [homeassistant.components.zha.core.channels.base] [0x1117:11:0x0006]: command failed: 'on' args: '()' kwargs '{}' exception: '[0x1117:11:0x0006]: Message send failure'