Cannot Detect the Machine during Wireless LAN Setup: Check 5Does the firewall function of your security software or operation system forcomputer interfere with setting up the network communication?The firewall function of your security software or operation system for computer may limit communicationsbetween the machine and your computer. Confirm the setting of firewall function of your security softwareor operation system or the message appearing on your computer.If the firewall function interferes with setting up:• When the message appears on your computer:If the message warning that Canon software is attempting to access the network appears on thecomputer, set the security software to allow access.Then click Redetect on the Check Printer Settings screen.When the machine is detected, follow the instructions on the screen to continue to set up the networkcommunication.• When the message does not appear on your computer:Cancel to set up, then set the security software to allow Canon software* to access the network.* Set the security software to allow Setup.app, Canon IJ Network Tool.app,canonijnetwork.bundle, CIJScannerRegister.app, Canon IJ Scan Utility2.app, andCIJSUAgent.app to access the network.After setting the security software, try to set up the network communication from the beginning.Note• For the operation system firewall settings or the security software firewall settings, refer to theinstruction manual of the computer or software, or contact its manufacturer.If there is no problem with the firewall settings:Go to check 6.Cannot Detect the Machine during Wireless LAN Setup: Check 6686
