How can I get the web interface to this printer to come up?

From Dell's site:
Here's what did help:
1) if you disable in the web interface, under Printer Server SEttings the HTTP Server Enabled, and the HTTP Config Enabled - the problem WILL go away. HOWEVER, you will loose the ability to remotely administer these printers.
2) Just yesterday Dell supplied a firmware upgrade that is to fix the 900 RIP errors. The file name is: 551_061.fly
This is a firmware upgrade that is to fix the problem, then you do not need to unenable the web interface.

I had the same problem
on my brother MFC-9320CW
I set it up to work over wifi and it worked well for months then i started having issues one day (showing offline)
i had to restart the printer all the time to be able to print again (showing as Online).
but after 10 - 15 mins it lost connection again and I could not see it on network (PING IP)
I couldn't even web-interface to the printer in the browser using its IP address (** see below)
It appeared to point at a printer problem
I know this may seem strange but eventually my investigation came to finding that it was a router problem - well my router anyway.
It doesn't make sense i know - but it was definitely a bizarre router problem in my case.
After that i was able to web-interface to the printer
I RECOMMEND YOU DO THIS:-
1. turn off your printer
2. restart your router
3. wait 2 mins
4 restart your printer
IF YOU FEEL CONFIDENT TO DO EXTRA TECHNICAL/NETWORK CHECKS
Also allows you to manage things at your machine
5. ** find out the IP address of the printer - either on the printer itself - menu>network>IP
ive setup my printer to be static IP so i always know what it is
OR If you know how to get into the control panel (web-interface) of your router then it will show active connections and IP addresses of equipment - including your brother printer
6. i use the web-interface as it immediately shows me if i have a dropped wifi problem--If the printers control panel is avalible in my browser then all is fine

See the manufacturer's web-site:

http://www.usa.canon.com/cusa/support/consumer/printers_multifunction/pixma_mp_series/pixma_mp610#Specifications

for specifications for your printer.

It says that it has a USB interface, and an optional BlueTooth interface.

If you have that optional interface, then you do have "wireless" capability, if your computer itself also has BlueTooth capability.

Disconnect the Ethernet cable between the router and the cable-modem (or DSL-modem).
Access the web-interface inside the router.
Allow "all" MAC-addresses to access the router.
Turn the printer off.
Turn the printer on, so that it gets a "fresh" IP-address from the router.
On the router's web-interface, get it to show a list of the "active" DHCP-connections.
It should show the IP-address and MAC-address for your printer.
Copy that MAC-address, and the MAC-address of your computer.
On the router's web-interface, access the table of "allowable" MAC-addresses.
Add the two MAC-addresses.
Enable the "selected MAC-addresses only" option.
Reconnect the Ethernet cable.

I beleive you are refering to the Cammand Center which is a web interface to your printer and it's network interface. You put in the IP address of the printer into your web browser and you can make changes to the printer.

First, make sure your Network Interface is working properly. Print a test-page. Menu--->Information------->Print configuration-page. If your machine print only one page, your interface doesn't work right. If your machine prints a configpage and a seperate network-page, you're good to go.

The easiest way is to look at the network-page and see if the machine already got a ip-adress. If it already got a ip-adress (DHCP), type that adress into your favorite web browser and do your config from the machine's web-interface.

Or you can access the printers menu.
Menu---->I/U---->EIOx settings---->TCP/IP----> and set your settings as you wish. Good luck.

I would guess that the printer is set to use the Serial Interface. I think this is the default interface setting on the 5040, hence the USB and parallel interface will be disabled.
You can change which interface is active from within the printer menu, once you have enabled the USB interface the PC should then detect the printer when you plug it in.

Details on entering the Menu on the 5040 can be found on the Dascom web site; http://dascom.firma.cc/support2/technical_notes/serial_matrix/5040/5040_tn004.htm

Using arp command (UNIX)
From UNIX you can use the arp command to assign the IP address to the network interface card.
Perform the following procedure:
1. Turn off the print controller and the main body printer.
2. Log in as superuser on a host on the same subnet as the network interface card. However, if
the server resides on another subnet, complete this procedure to store the IP address in the
network interface card.
3. Find the MAC address of the network interface card. The address is printed on the Status Page
each time you turn on the print controller and the main body printer.
4. Edit the hosts file (usually /etc/hosts) or use NIS or DIS to add IP address and node name of
the network interface card. See the network administrator for the IP address. For example, a
network interface card with a name of printfast and an IP address of 192.9.200.200 has the
entry:
192.9.200.200 printfast
5. Add an entry to the arp cache for IP address and Mac address of the network interface card,
as:
arp -s 192.9.200.200 0:40:c8:0:0:ff
RS6000 (AIX) requires the ether option after arp -s. For example:
arp -s ether 192.9.200.200 0:40:c8:0:0:ff
6. Check the print controller and the main body printer to see that the network interface card is connected
to the network. Turn on the print controller and the main body printer.
7. Send a ping command to the network interface card to verify it is running on the network, as
for example:
ping 192.9.200.200 or ping printfast
The network interface card will not respond to this ping command but it will read its IP address
from the packets.
8. Turn off the print controller and the main body printer and back on again and then send the
ping command again to verify that the network interface card obtained its IP address. A confirmation
message displays as:
192.9.200.200 is alive
9. Remove the entry from the arp cache using the following command. Specify the network
interface card either by its IP address or by its name, for example:
arp -d printfast
Konica Network Interface Card INSTRUCTION MANUAL 2-5
Chapter 2 Setting Up the Network Interface Card
Using MAP
By using MAP (Management Access Program) included the CD-ROM that comes with the network
interface card, you can automatically identify the network interface card on the network and set it up
for TCP/IP by using Web Utilities. To use this method to assign the IP address to the network interface
card, the following procedure should be performed on computers in advance:
• TCP/IP correctly configured
• IPX/SPX-compatible protocol installed
• MAP installed and MAP setup correctly executed
About how to set up TCP/IP and how to install IPX/SPX-compatible protocol, refer to Windows Help
menus for example. For MAP, refer to “Using MAP (Management Access Program)” in this chapter.
To change an IP address already assigned to a network interface card, you can not use the
arp command. Use Web Utilities instead. These methods also allow you to set up subnet
mask and default gateway, etc.
Using NIManage
Refer to “Chapter 7 AppleTalk Configuration”.

Accessing Web Utilities
The network interface card is provided with an HTTP server having Web Utilities. By accessing this server,
you can change settings of the printing system. There are two ways to access Web Utilities, through a Web
Browser, either through Netscape Navigator, version 4.x or greater or through Internet Explorer, version 4.x
or greater.
• Use MAP to have the network interface card on the networks identified automatically, thereby accessing
Web Utilities.
• Use a Web Browser to type the IP address assigned to the network interface card, and thereby access
the Web Utilities. For example:
http://192.168.0.128/
If you designate the proxy setting in your Web Browser you cannot access the Web Utilities.
For more information see your network adminisrator.
Chapter 2 Setting Up the Network Interface Card
2-6 Konica Network Interface Card INSTRUCTION MANUAL

Using MAP (Management Access Program)
A utility called MAP is provided on the CD-ROM that comes with the network interface card.
This program automatically identifies the network interface cards on the networks and lists them on Web
Browser screen. From this Web Browser list you can select a network interface card to change its settings
and control Web Utilities.

try
username: admin, sysadmin, sysadm, administrator
password: admin, blank, sysadmin, sysadm

login = root
pass = 0000000