Ran into a new issue today. We had a client moving their citrix licenses to a new license server. Done this dozens of times in the past. DDC licenses moved no problem. However PVS licensing popped the device doesn't have a license message. When we moved it back it was fine. Can we no longer change the PVS licensing server without a device reboot? Is there a command I can run on the PVS target device to have it re-allocate without rebooting all the target devices? These are 24x7 locations, so booting 1000s of VMs will cause some downtime and messages.

Try to reboot the DDCs.

DDCs were fine. This specifically popped from the PVS Target software.

latest license server version maybe?

Yup. Latest greatest licensing server deployed. Seems to be tied in to those new licensing alert messages with latest versions of software.

We had the same happen after an upgrade to 2411, we would not get a valid license for PVS during the installation. In our case the certificate on the license server was expired (for years).

BTW: you can ensure you find out about this early by always testing LS communication when running the PVS configuration wizard -- I know it's fairly common to disable this on 2nd and subsequent but that leaves you open to this sort of problem with firewalls.