# Can't save IP address change in Manual

[![Captures.PNG](https://bookstack.lionelsgroup.co.za/uploads/images/gallery/2024-05/scaled-1680-/captures.PNG)](https://bookstack.lionelsgroup.co.za/uploads/images/gallery/2024-05/captures.PNG)

> Change the "Subnet prefix length to the actual length of the subnet prefix.

[![Captureww.PNG](https://bookstack.lionelsgroup.co.za/uploads/images/gallery/2024-05/scaled-1680-/captureww.PNG)](https://bookstack.lionelsgroup.co.za/uploads/images/gallery/2024-05/captureww.PNG)