Wi-Fi Connection is unavailable during the initial setup. - If the wireless router has the option for "Client Separation", disabling this option may help . To determine if your router has this option and for instructions on how to disable it, refer to the user manual for your router, or contact your router's manufacturer.
Important Some models, such as the PIXMA TS8220 Depending on your model, you will need to have an ICA driver installed on your Mac in order to use Image Capture.