When updates are turned off, Analyse-it does not tell people about updates and does not let them check for or install an update. It still connects to analyse-it.com to check the license.
Set this registry value on each computer:
HKEY_LOCAL_MACHINE\Software\Analyse-it\Analyse-it for Microsoft Excel
Value name DisableUpdates, type REG_DWORD, data 1. Set it to 0, or delete it, to turn updates on again.
Use Group Policy Preferences to set it on many computers.
From the Administrator's Guide for Analyse-it 6.24.0: https://analyse-it.com/docs/user-guide/turningoffupdates