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Product Cannot Connect to a Wireless Router or Access Point
If your product has trouble finding or connecting to a wireless router or access point (ES-C320W/RR-
400W), try these solutions:
• If you are connecting the product via Wi-Fi Protected Setup (WPS), make sure you activate WPS on
your product within 2 minutes of activating WPS discovery mode on the router by pressing the WPS
button or enabling the WPS setting in your router firmware.
• Make sure to place your product within contact range of your router or access point. Avoid placing
your product near a microwave oven, 2.4 GHz cordless phone, or large metal object, such as a filing
cabinet.
• Verify that your router or access point is operating correctly by connecting to it from your computer or
another device.
• You may need to temporarily disable your firewall and any anti-virus software on your wireless router
or access point. Then try scanning again. You can also unblock your product driver or network
address in your firewall or anti-virus software.
• Check to see if access restrictions, such as MAC address filtering, are set on the router or access
point. If access restrictions are set, add your product's MAC address to your router's address list. To
obtain your product's MAC address, check the label on the back or bottom of your product. Then
follow the instructions in your router or access point documentation to add the address to the list.
• If your router or access point does not broadcast its network name (SSID), follow the instructions that
came with your product to enter your wireless network name manually.
• If your router or access point has security enabled, determine the kind of security it is using and any
required password or passphrase for connection. Then make sure to enter the exact WEP key or WPA
passphrase correctly.
• Check if your computer is restricting the available wireless channels. If so, verify that your wireless
access point is using one of the usable channels and change to a usable channel, if necessary.
• The product may not be able to communicate with a computer with both Ethernet and Wi-Fi adapters
enabled. Disable all network interfaces except for the interface connected to the product.
• Turn off all of the devices you are trying to connect to the network. Wait about 10 seconds, and then
turn on the devices in the following order; wireless router, computer or smart device, scanner. Move
the scanner and computer or smart device closer to the wireless router, and then try to make network
settings again.
• If you are using multiple wireless routers at the same time or the wireless router has multiple SSIDs
and devices are connected to different SSIDs, you cannot connect to the wireless router. Connect the
computer or smart device to the same SSID as the scanner.
• Enable the DHCP function on the router or access point.
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