On the 15th of January, Microsoft will change the authentication type for devices connecting to 365 services (such as Exchange). This will impact the Evoko devcies, as they access Exchange for calendars.
In order to prepare for this change, please update to the latest firmware using the link below. Should you require further assistance, please contact evoko support (linked from the firmware article).
Please also follow the article below published by Evoko to register the devices in 365, and contact our support team for any further assistance.
The above actions must be completed by the close of business 14th January to avoid disruption.