Wireless LAN Troubles

See the following sections.

The SSID of the wireless LAN router/access point is not displayed in the list of access points

The Remote UI is not displayed

Check the DHCP function of the wireless LAN router or access point network key. At factory shipment, the machine's default settings have <DHCP> and <Auto IP> enabled so it obtains an IP address automatically. Enable the DHCP function on the wireless LAN router or access point and repeat the setup again. DHCP function: A function that automatically assigns an IP address and other necessary information to each device connected to a network or a computer that is connected to a network. For information on checking and setting methods, refer to the instruction manual of the wireless LAN router or access point, or contact the manufacturer.

Check whether the IP address of the machine matches the subnetwork address of the computer's IP address. If the subnetwork addresses do not match, change each of the machine's IP address so they match. "Setting the IP Address" To view the IP address of the machine, follow the steps below. "Checking IP Address Settings" General Network Address Determination Method When the subnet mask is set as "255.255.255.0", it is the same value as the IP address with the part that is furthest to the right replaced by a "0". Ex.: IP Address: 192.168.127.123 Subnet Mask: 255.255.255.0 Subnetwork address of the above example: 192.168.127.0 A connection cannot be made across a router. Use within the same segment (in an environment that does not cross a router).

Check the wireless LAN router or access point network key (WEP key.) Enter the correct network key (WEP key) and repeat the setup again. For information on how to check the network key (WEP key), refer to the instruction manual of the wireless LAN router or access point, or contact the manufacturer.

Check to see if <SNMPv1 Settings> or <SNMPv3 Settings> is set to <Off> for the machine. You may not be able to specify and browse each item of the machine from utility software that uses the SNMP protocol to obtain the information. Change <SNMPv1 Settings> or <SNMPv3 Settings> to <On> when it is set to <Off>. You can set <On> to both <SNMPv1 Settings> and <SNMPv3 Settings>. When <SNMPv1 Settings> is set to <On>, the machine cannot be recognized when accessed from the utility software with a community name different from the machine setting. If it cannot be recognized, check your community name. "Monitoring/Controlling Devices by SNMP (SNMP Setting)"

Do not know the SSID or network key for the wireless LAN router/access point

The connection is bad (Slow or unavailable connection)

When multiple networks are used Check whether each communication channel of the wireless LAN router or access point is spaced five or more channels apart. Not setting the channels far enough away from one another may cause interference. Set the channel as far apart from other network channels as possible such as Ch.1, Ch.6, and Ch.11. For information on checking and setting methods for channels, refer to the instruction manual of the wireless LAN router or access point, or contact the manufacturer.

Unable to communicate after turning the power OFF and ON to restart the machine

The printer port name is not displayed in [Print to the following port(s)]

The machine automatically connects to the wrong destination via the dial-up connection (when using a dial-up router)

When security settings on the wireless LAN router/access point are changed

Certain settings on the wireless LAN router or access point will not allow connection/communication with the machine. Connection/communication with the machine is not possible under the following settings. For information on wireless LAN router or access point settings, refer to the instruction manual of the wireless LAN router or access point, or contact the manufacturer. The machine is not able to find the wireless LAN router/access point for the following Stealth function: Enabled - A function that prevents a wireless LAN router or access point from displaying its SSID on other devices. To connect without disabling the stealth function, enter the settings manually. "Setting by Manually Entering SSID" Deny ANY: Enabled - A function on a wireless LAN router or access point that denies connection with a device whose SSID is set to "Any" or is left empty. To connect without disabling Deny ANY, enter the settings manually. "Setting by Manually Entering SSID" Channels: Ch.1 through Ch.11 (US) - Channels used for communication. When multiple networks are used, to avoid interference between the channels, each network will be set to a channel that is as far apart from other network channels as possible such as Ch.1, Ch.6, and Ch.11. The machine cannot connect with the wireless LAN router/access point MAC address filtering: The MAC addresses of the machine or certain computers are denied access. - A function on the wireless LAN router or access point that denies communication with all devices other than those whose MAC addresses (a unique identifier number given to each device) are registered in the wireless LAN router or access point. The Remote UI is not displayed because the machine cannot communicate with the wireless LAN router/access point WEP key number that you are using: Set from 2 to 4 To communicate without changing the settings of the wireless LAN router/access point, input the settings manually. "Setting by Manually Entering SSID" Automatically generated WEP key on wireless LAN router or access point (Hexadecimal) To communicate without changing the settings of the wireless LAN router/access point, input the settings manually. "Setting by Manually Entering SSID" An encryption method used when only IEEE802.11n communication is used: WEP or TKIP