Question about Brother MFC 7840W Printer
I have a Brother MFC-7840w wireless printer. I'm trying to connect to a 2wire wireless router. In the setup wizard on the printer control panel it detects my wireless network, says connecting, then gives the connection NG message. I contacted Brother support, they pointed the finger at my 2wire router (which kind of made sense considering the printer could see my network) so I called at&t (uverse) support and they pointed the finger right back at Brother. I'm hesitant to make changes on my router firewall without knowing more about what I'm doing...do you think it's simply my router firewall?...I have a desktop hardwired to the router using a powerline connection, a wireless laptop, and an apple itouch. Neither of my wireless devices had any trouble accessing my network...just the printer....
any assistance would be appreciated. Thank You.
One could connect the MFC with modem-router using the key pad on the MFC. Press the menu button and scroll down to LAN, press OK and scroll down to WLAN, OK and scroll down to Setup Wizard. MFC would detect and display wireless router. Choose Open System and put in the WEP key if needed. MFC would be CONNECTED. For most modem-router, it is critical to scroll down to WLAN --> TCP/IP and change the BOOT METHOD to DHCP. One would think that the default AUTO setting would work but it would not connect the laptop with the MFC. Next step is to install the MFL-Pro software in the laptop. One must turn off all the firewall before installation. The installation should detect the MFC and there would not be any problem afterward.
Posted on Sep 01, 2009
For me, the quick solution was to use the 'Open System' instead of 'Shared Key', 'WPA/WPA2-PSK' or 'LEAP' authentication options on your printer.
However, after that, I decided to change the security settings on my router a bit. Log into your router, click the 'Home Network' icon at the top, and then check out 'Wireless Settings.'
The 'Wireless Security' section should tell you how your 2Wire is configured (which I eventually changed to WPA2-PSK.)
Posted on Nov 15, 2008
I had the same problems with a 2Wire router from AT&T.
I simply found the router and selected "open system" and then chose the WEP encryption and entered the key. The printer immediately connected to the router. I haven't completed setup yet so I don't know if it prints over the network but it displayed "connected" rather than "connection ng."
Posted on Mar 26, 2009
I just switched to AT&T Uverse too. I connected the printer to the network fine (it said "connected"), but it shows as offline in my task tray and will not accept any jobs wirelessly. I can print through USB. Any ideas?
Posted on Aug 17, 2010
The solution above from DJOrtley just did it for me. I have Verizon FIOS and the Actiontec router MI424-WR Rev. D . I wasn't selecting Open System, I was selecting Shared and would put in my WEP key and it wouldn't work. I didn't know to use Open System.
Posted on Jan 13, 2009
Your problem is the security settings in your wireless router.
As smart as the MFC-7840 is, it can only negotiate the security cypher AES. Your router may have settings for TKIP, AES, or both. Change it to WPA2 AES and you should be on the network quickly.
Posted on Aug 13, 2011
I spent some time to install this printer on a WAP/WAP2 network. Here is was I did to make it work. Since my Cisco E2000 Router was set to the 5GHz band I downgraded this to 2.4 Ghz and the connection was working.
Posted on Jan 21, 2011
DocSavageGood nailed it. The router is not Shared with WEP, it is Open with WEP.
Posted on Aug 03, 2010
DJOrtley's solution is the key, but make sure NO Laptop is near the printer at that time since it can interrupt the wireless signal to the printer!
Posted on Dec 14, 2009
I had to change my router setting to WPA-Personal only.
Posted on Jul 11, 2012
Ive Tried all of the above and none of is is working.
I am using a Linksys router, With teh Wifi protect. that doesnt work at all. then I do manualy it finds network. i select open system, then go to wep. I add wep keep, now ive doen it both 128 bit and 64. Still get that stupid Connection NG. the Router is practly on top of the printer. Ive even tured off all electronics in teh who area to make sure its not interferring. but no avail. yet all my other Wireless deiveces, PSP,DSI, P3 and some Ipods connect with out problems
Posted on Jun 30, 2010
Look under the WLAN submenu on your printer and scroll to item #7...enable WLAN yes/no. You want 'yes' of course. Problem solved. I had no problem with the initial set up of the device when I bought it about a year ago. Then my network and the printer stopped talking. I tried all the advice on these sites like everyone else, and nothing worked. Then I happened to scroll around, and sure enough, item #7 appeared. Printing wirelessly like a charm now.
Posted on Sep 14, 2010
Setup Brother Printer to Wireless Network-
You Must Understand For Almost Every Model Number Of Brother Wireless Printer The Steps Are Almost Same -
Before We Proceed We Need To Have Few Things Upfront.
I hope you will help.
Posted on Aug 28, 2018
On my router, the issue was that I had the Wireless Mode set to "N only." Changed to B/G/N and it connected on the first try.
Posted on Nov 13, 2014
I followed the menu instructions above and then W7 saw the printer, went and got the driver, loaded it and then I printed. THis absolutely works. Just like MS said it would under w98 LOL!
Posted on Jan 20, 2013
I've tried just about everything in this thread and am totally frustrated. My Brother wireless worked great for a couple of years, and just decided to stop talking to my home network. It won't let me reconnect. I'm heading out tomorrow to find an HP or some other brand. I've wasted more time trying to get this POS to talk to my network than the stupid printer was worth in the first place. Big thumbs down on this product tonight.
Posted on May 08, 2014
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
Tips for a great answer:
Oct 08, 2015 | Brother MFC-7840W Laser Multifunction...
Nov 14, 2012 | Brother MFC-8870dw Wireless Multifunction...
Jan 03, 2012 | Brother MFC 7840W Printer
Jul 21, 2011 | Brother MFC 7840W Printer
Jun 18, 2011 | Brother MFC 7840W Printer
Mar 27, 2011 | Brother MFC 7840W Printer
May 16, 2010 | Brother MFC 7840W Printer
Jan 01, 2010 | Brother MFC-8870dw Wireless Multifunction...
Dec 10, 2009 | Brother MFC 7840W Printer
Jan 18, 2009 | Brother MFC 7840W Printer
54,529 people viewed this question
Usually answered in minutes!