3210-L - Iris Smart plug (Router) Join Error

I’ve had 5 of these working fine for the past 6 months. I had to rebuild my network recently and am having a hard time getting them to join error free.

They appear to be sending messages, too, as seen in the first line of the log capture below.

Any suggestions on where I can look to sort this out would be appreciated.

The errors I’m seeing are:
info 2020-09-26 09:06:39: MQTT publish: topic 'zigbee2mqtt/smartplug_masterbedroom', payload '{"linkquality":81,"power":0,"state":"OFF"}' info 2020-09-26 09:06:39: Configuring 'smartplug_masterbedroom' error 2020-09-26 09:06:40: Failed to configure 'smartplug_masterbedroom', attempt 2 (Error: Read 0x000d6f000b4f59ba/1 haElectricalMeasurement(["acVoltageMultiplier","acVoltageDivisor","acCurrentMultiplier"], {"timeout":10000,"disableResponse":false,"disableDefaultResponse":true,"direction":0,"srcEndpoint":null,"reservedBits":0,"manufacturerCode":null,"transactionSequenceNumber":null}) failed (Status 'UNSUPPORTED_ATTRIBUTE') at Endpoint.checkStatus (/opt/zigbee2mqtt/node_modules/zigbee-herdsman/dist/controller/model/endpoint.js:166:23) at Endpoint.<anonymous> (/opt/zigbee2mqtt/node_modules/zigbee-herdsman/dist/controller/model/endpoint.js:221:26) at Generator.next (<anonymous>) at fulfilled (/opt/zigbee2mqtt/node_modules/zigbee-herdsman/dist/controller/model/endpoint.js:24:58)) info 2020-09-26 09:06:40: MQTT publish: topic 'zigbee2mqtt/smartplug_masterbedroom', payload '{"linkquality":81,"power":0,"state":"OFF"}' info 2020-09-26 09:06:40: Configuring 'smartplug_masterbedroom' error 2020-09-26 09:06:40: Failed to configure 'smartplug_masterbedroom', attempt 3 (Error: Read 0x000d6f000b4f59ba/1 haElectricalMeasurement(["acVoltageMultiplier","acVoltageDivisor","acCurrentMultiplier"], {"timeout":10000,"disableResponse":false,"disableDefaultResponse":true,"direction":0,"srcEndpoint":null,"reservedBits":0,"manufacturerCode":null,"transactionSequenceNumber":null}) failed (Status 'UNSUPPORTED_ATTRIBUTE') at Endpoint.checkStatus (/opt/zigbee2mqtt/node_modules/zigbee-herdsman/dist/controller/model/endpoint.js:166:23) at Endpoint.<anonymous> (/opt/zigbee2mqtt/node_modules/zigbee-herdsman/dist/controller/model/endpoint.js:221:26) at Generator.next (<anonymous>) at fulfilled (/opt/zigbee2mqtt/node_modules/zigbee-herdsman/dist/controller/model/endpoint.js:24:58))