Endpoint Protection

We're in the process of decommissioning the old server which was running version 12.1, and we're moving to version 14 on the new server. I gave up trying to find a migration document to do the migration from 12.1 to 14 on servers with different names and IP addresses, so I thought I'd reinstall on the new and push the new software out. The old server now has Symantec uninstalled, but obviously the workstations are still trying to communicate with the old server. I found a setting under "Edit Client Install Settings" for "Remove existing Symantec Endpoint Protection client software that cannot be uninstalled." However, this setting is greyed out, and I can't find a way to enable it. Is there a way to remotely uninstall the old version 12 on the old server and force the installation to 14 on the new server? Thanks

When you say "server" do you mean the SEPM itself or are you talking about just the client?

For the "Remove existing Symantec Endpoint Protection client software that cannot be uninstalled." setting if you create a new install setting it should be accessible.

There are docs here on moving to a new SEPM:

https://www.symantec.com/connect/articles/how-move-sepm-one-server-another-server

http://www.symantec.com/docs/TECH171767