Dell 3115 Color Laser User Manual page 132

When you enter a fixed IP address, avoid the "169.254.x ess used by AutoIP.
13. Click Next when you are done.
14. Select the different print are to install.
15. Click Install when you are done.
16. When you see the Wireless configuration is now complete screen, successfully
configured the wireless setting on your printer.
17. Cli Next to continue.