Printer is offline and i can't get it online

Since this is a network printer there are a few potential sources for problems.

1. IP address conflict. When items on a network are powered on and off sometimes the auto-assigned IP addresses aren't refreshed. The router may think the printer isn't there and re-uses the IP address for a new device on the network, but the printer is still trying to connect with the original IP address.
   
1. Log onto your router. See if the printer shows up in the DHCP Client Table of your Local Network - it may have names or just MAC addresses depending on the router. You can print out a test sheet from your printer and see what *it* has as it's IP address and see if that's assigned to something else.
2. If you do find a conflict, the easiest solution, IMO, is to assign a static IP address to the printer.
2. Bad cable or hub. Both can go bad and a problem with either will cause the printer to appear to be offline.
1. Check for lights at both ends of the ethernet cable.
2. Try a different port in the hub or router
3. Try a different cable
3. An recent update corrupted your printer settings.
1. Uninstall the printer, then reinstall it
   

Hi,
You can set Static IP address according to your network

When you will press the Setup Menu and go to Network Menu You will find an option which says Ip address there you can assign Static IP address

Once done that may be your printer will go offline again and you can set it online by right clicking on the printer and selecting "Set Printer Online" option (Assuming you have Windows OS

is this a network printer? if so, your router may have given it a new IP address. Use the keys on the printer to find the IP address in the printer settings, and then update the IP address for the printer port in your computer.

first of all, download updated driver from software.canon-europe.com and install ( before install, remove old drivers and programs)
and if appears again, change your network cable.

I Open my browser....I signed in to my router as administrator ....
Mine is 192.168.1.1 ....
I went to status in my router ....
Then to local network ....
Then to DHCP Clients Table ....
This is how I found what printer address the was.... Then I typed the printer ip address into my browser
Mine happened to be 192.168.1.105 ....
Yours will probably be different....That got me to the 1720dn printer menu ....I clicked on Configuration ....
I clicked on Print Server Settings
I clicked on TCP/IP
I clicked on Set static IP address.
I changed IP address from 192.168.1.105 To 192.168.1.125
and Submit....Now you can get to the printer menu at 192.168.1.125

Go to run....
Printers & Faxes
Right click on Dell laser printer 1720dn
Properties. Ports ....
Add port ....
Double click on Dell Enhanced TCP/IP ....
I named the port My dell laser 1720 dn....Where it said enter a single IP address or host name I entered the new address 192.168.1.125
the clicked OK ....

Right click on Dell laser printer 1720dn
Properties....Ports
Choose your new port ....

I assume it's turned on and connected to the router.
Sometimes with DHCP, the IP address on the printer will change. I end up going into the router table to see what IP addresses are assigned where. Invariably I'll find my network printer has changed. Find the printer and write it down.

In Windows, Go into Printers> choose the Brother and right click to check Properties. Look for Ports and change the IP address as needed. It will come back online.

What is the current state of the printer under Printer and Faxes on the Control Panel? If it's offline after you setup TCP/IP printing just right click on the printer icon then change the status from offline to online your printer should say ready below it and to test if it's already associated to the network try to run a "ping" test from your computer and check if you will get a reply from 192.168.0.4 which is the IP address of your printer as you mentioned. If your gettings time outs try to disable all the firewall and antivirus on your computer usually that will do the trick.

I recently resolved the same problem by going into the Printer and Faxes under Control Panel. Look for the printer icon that shows in offline status. Right click 'Properties' and go to the Ports tab folder. Select the Port IP address in question and click on 'Configure Port' button. Click on the check box next to SNMP [SNMP status enabled] to remove the check mark and to disable the option. Click OK on the Configure Port window. Click Close on the properties window. Hope this helps.

I have a MFC665CW connected wirelessly to a router and a pc connected by ethernet to the router, with a broadband satellite receiver connected to the WAN port of the router (plan to add another PC to the network soon, so have set up the network in advance). I had trouble with the brother status montior flashing 'Ready' then 'Offline' all the time, when I knew the printer was always connected to the network. I had set up the DHCP stuff on the router to allocate IP addresses to everything that connects to the network, like you are supposed to. I updated drivers and firmware, but the problem continued.
When I checked the router status log I saw that one MAC address in the network was making a DHCP request every 5 minutes (i.e. it was asking the router to allocate it an IP address at regular intervals). Every time the router answered that request it made the Brother status monitor go 'offline'. The MAC address was my broadband modem. I fixed the issue by setting the router to allocate a static IP address to the MAC id for my broadband modem (in the DHCP setup section in the router's admin interface). That stopped the dynamic IP address requests from the broadband modem and the Brother status monitor works fine now. I also set static IP adresses for the printer and PC to be on the safe side, although I don't think that matters.
So, check your network log and look for a MAC id that makes regular DHCP requests and then set a static IP address for it. Hope this helps you guys too.

Hi,

I had the same problem with a Brother MFC-6490CW AIO printer. Here is how I resolved it:

Open the printers folder.
Right-click on the Brother printer and display the Properties page
Select the Ports tab.

In my system (Vista Premium), the selected port was a WSD port (whatever that means). Further down the list, there was a TCP/IP port that was obviously created by the Brother installation software. I selected the Brother-created TCP/IP port (which deselected the WSD port), applied the changes, and suddenly my printer was online. No idea what the difference between these two ports is, but I'll stick with the TCP/IP port until further notice.