We will be making a smaller change that is necessary preparation for the upcoming large change. This change should only take 1 - 30 minutes. It should only impact internet-of-things (IoT) types of devices. This would include things like: printers, cameras, laundry machines, vending machines, etc. It should not have a negative impact on your regularly used computing devices.
Please let I.T. know asap if you experience any ongoing issues with any of these types of devices.