An OKI B432, MB472 or MB492 may appear in Windows as “Offline” even though the device is turned on, connected to the router and accessible from other computers. Sometimes printing starts working again after restarting the printer or reinstalling the driver, but the problem returns the next day.<\/p>\n
The most common cause is a WSD queue or a change in the printer’s IP address. The router assigns the device a new address, while Windows continues sending print jobs to the old one. A more reliable solution is to keep the IP address fixed and use a Standard TCP\/IP Port<\/strong> with the RAW<\/strong> protocol and port 9100<\/strong>.<\/p>\n Where to start<\/strong><\/p>\n Print an OKI network information page and write down the current IPv4 address. Then compare it with the address on the Ports<\/strong> tab in the printer properties. If WSD is selected or a different IP address is specified, create a new Standard TCP\/IP Port. There is no need to reinstall the driver before performing this check.<\/p>\n<\/div>\n The procedure for checking the port and IP address applies to the following models:<\/p>\n Wired models use Ethernet, while dnw<\/strong> versions may also use a wireless connection. It is important to check the address of the active network interface. A USB connection does not use a network IP address and requires different troubleshooting.<\/p>\n On a model with Wi-Fi, do not confuse the wireless interface address with the Ethernet address. If the cable and Wi-Fi connections were configured at different times, the network information page may contain information about both connections.<\/p>\n You can also check connectivity with the ping command:<\/p>\n Replies showing a time in milliseconds confirm connectivity. No ping reply does not always indicate a problem: some network settings block these requests. If the web interface opens, proceed to checking the port.<\/p>\n If the required command is not displayed, press Win + R<\/strong>, enter If offline mode returns after a restart, clearing the option alone is not enough. Continue checking the port.<\/p>\n If the button is missing, use The following wizard is almost identical in Windows 11 and Windows 10.<\/p>\n Why SNMP Status Enabled is cleared<\/strong><\/p>\n This check box controls only Windows port status monitoring. If SNMP requests are blocked by the router, firewall or the device’s own settings, Windows may incorrectly show Offline even though RAW printing to port 9100 works. You do not need to disable SNMP on the printer itself for the entire network.<\/p>\n<\/div>\n If the address field is unavailable or this port is used by another printer, do not change it. Create a new Standard TCP\/IP Port as described in the previous section and assign it only to the required OKI queue.<\/p>\n This is the preferred method for home and small office networks: the printer continues receiving its network settings automatically, but the router always assigns it the same address.<\/p>\n Section names vary depending on the router manufacturer. Do not create a reservation for the Wi-Fi MAC address if the printer is actually connected by cable, and vice versa.<\/p>\n Do not choose an arbitrary static address<\/strong><\/p>\n The address must belong to the same subnet, must not be used by another device and must not conflict with the dynamic DHCP range. Incorrect values can make the printer inaccessible and disrupt Scan to Shared Folder or e-mail sending. If you do not know the required network settings, use DHCP reservation in the router.<\/p>\n<\/div>\n Windows may keep several queues for the same model: WSD, IPP, USB and Standard TCP\/IP. First determine which queue works correctly.<\/p>\nWhich models this guide applies to<\/h2>\n
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Determine the type of problem<\/h2>\n
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\n \nSymptom<\/th>\n Likely cause<\/th>\n First check<\/th>\n<\/tr>\n<\/thead>\n \n The printer worked, but after restarting the router or a power outage it became “Offline”<\/td>\n The address assigned by DHCP changed<\/td>\n Compare the current IPv4 address with the Windows port address<\/td>\n<\/tr>\n \n The OKI web page opens, but Windows shows Offline<\/td>\n WSD, an old port or an incorrect SNMP status check<\/td>\n Check the Ports<\/strong> tab and SNMP Status<\/td>\n<\/tr>\n \n One computer prints, while another shows “Offline”<\/td>\n An incorrect queue or port is configured only on the second computer<\/td>\n Compare the ports of both queues<\/td>\n<\/tr>\n \n The IP address starts with 169.254<\/strong> or is 0.0.0.0<\/strong><\/td>\n The printer did not receive a valid address from the router<\/td>\n Check the cable, Wi-Fi and DHCP before changing Windows settings<\/td>\n<\/tr>\n \n The queue uses USB001<\/td>\n This is a USB queue, not a network connection<\/td>\n Do not replace it with an IP port if the printer is supposed to work via USB<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n Step 1. Find the printer’s current IP address<\/h2>\n
B412, B432, B512, ES4132 and ES5112<\/h3>\n
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MB472, MB492, MB562 and related ES MFPs<\/h3>\n
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How to evaluate the address<\/h3>\n
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Step 2. Check whether the OKI device is accessible from the computer<\/h2>\n
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http:\/\/192.168.1.25<\/code>.<\/li>\n\n
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cmd<\/code> and press Enter<\/strong>.<\/li>\nping 192.168.1.25<\/code><\/pre>\nStep 3. Disable an accidentally enabled offline mode<\/h2>\n
Windows 11<\/h3>\n
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Windows 10<\/h3>\n
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shell:PrintersFolder<\/code> and press Enter<\/strong>. Right-click the queue, select the option to view print jobs and open the Printer<\/strong> menu.<\/p>\nStep 4. Check the port being used<\/h2>\n
How to open the properties in Windows 11<\/h3>\n
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How to open the properties in Windows 10<\/h3>\n
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shell:PrintersFolder<\/code>, then select Printer properties<\/strong>. On the Ports<\/strong> tab, find the row with the selected check box.<\/p>\n\n\n
\n \nSelected port<\/th>\n What it means<\/th>\n Action<\/th>\n<\/tr>\n<\/thead>\n \n WSD-…<\/strong><\/td>\n Windows discovers the printer dynamically; after network changes, the queue may become unstable<\/td>\n Create a Standard TCP\/IP Port<\/td>\n<\/tr>\n \n IP_192.168…<\/strong> or Standard TCP\/IP Port<\/td>\n The queue already uses a fixed address<\/td>\n Compare the port address with the printer’s current IPv4 address<\/td>\n<\/tr>\n \n USB001, USB002<\/strong><\/td>\n The queue is intended for USB<\/td>\n Do not use it as a network queue; create a separate TCP\/IP queue<\/td>\n<\/tr>\n \n PORTPROMPT, FILE or NUL<\/strong><\/td>\n Data is not being sent to a physical printer<\/td>\n Select or create a network port<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n Step 5. Create a Standard TCP\/IP Port<\/h2>\n
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Step 6. If a Standard TCP\/IP Port already exists<\/h2>\n
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Step 7. Keep the IP address fixed so the problem does not return<\/h2>\n
Option 1. Reserve the address in the router<\/h3>\n
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Option 2. Set a manual address on B412, B432, B512, ES4132 or ES5112<\/h3>\n
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Option 3. Set a manual address on MB472, MB492, MB562 or ES MFP<\/h3>\n
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Step 8. Remove duplicate queues only after successful testing<\/h2>\n
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