In many cases issues can be resolved by performing one or all of the below tasks.
Option 1: Restart Management Service
Open the CCleaner Network Management Service Configuration tool and click "Restart".
Option 2: Refresh Network
To refresh the network, right-click on your network from the network tree and click "Refresh".
Receiving an incorrect "Host Limit Reached" error?
Re-Register License Key
1. From the CCleaner Network console menu, select 'Network > Registration'. This will open the license information window.
2. Click on 'Change key' and paste your registration key - please ensure there are no leading or trailing spaces when you do this.
3. Click 'OK'. This will refresh the registration.