Licence Extension Failed

[keithsonic]

Extended 2.1 licence today but can't activate and all systems are down.
Minimwatch on Windows 11 initially went red (no connection) but is now greyed out.
Minimserver on QNAP is running but when started says no connection to 102.168.1.19 (the NAS address).
Minimserver is not visible from Control Point app.
Minimserver library is not accessible from JRiver.
Tried rebooting/restarting to no avail.
Have I missed something I need to do when extending licence?