- Upgrade your existing controller to the latest version ( Download from here https://www.ui.com/download/unifi/ ) run through setup and install over the top which will upgrade it
- Backup your existing Database
- Install New Version of Controller on new server
- On Launch for the first time, Restore the Backup file to the new server
- Migrate AP’s to new Controller using SSH defined here ( Usually same as controller )
SSH login Username : ubnt
After login run :
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