Good morning. Last week, we finished upgrading our primary servers to 2017.4. Everything went very smooth except for two things. The last two of our Satellite servers were updated to the latest version. When I reboot the servers, I cannot log into the user source on either server. After multiple reboots, the status in the update shows "Awaiting Reboot".
If I were to unregister, then re-register these satellite servers, would I lose all the network locations in ZCC? Would there be a better way to fix this outside of re-registering or re-installing the agent software?

thank you