This document explains why you may see agents that are uninstalled immediately following a console upgrade.
Immediately after upgrading your console to a new version, you find agents that had previously been successfully checking in prior to the upgrade are no longer installed.
This is most likely caused by the distribution server those agents were pointed to not being synced with the latest upgraded content before those agents checked in.
- 9.2 agent checks in with 9.3 console and sees it needs to update
- 9.2 agent uninstalls itself
- Machine tries to get new installer from distribution point to install latest version but it hasn't synced yet
- Target machine fails to retrieve new installer and upgrade process stops, leaving the old version uninstalled
Reinstall agent on the affected machines after syncing the Distribution Servers.
To prevent this issue with future upgrades, make sure to sync your distribution servers immediately after the upgrade to ensure they have the latest files available.
Shavlik Protect 9.2
Ivanti Patch for Windows Servers 9.3+