It should appear in the ubuntu repos (xenial-updates) which is enabled by default in Maui.
For you it does not make much sense as you already installed a newer 4.9.9 vanilla kernel at least on one of your Maui machines (the one with the CPU Lockups)
For you it does not make much sense as you already installed a newer 4.9.9 vanilla kernel at least on one of your Maui machines (the one with the CPU Lockups)