Question about HP Officejet Pro L7780 All-In-One InkJet Printer

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Initial wireless activation freezes unit

I've had 3 L7780 units and each has the same issue. HP acknowledges they know of it but can offer no solution beyond "try a different unit". Upon inputting the WEP password for a wireless network the printer states it is active on the network but instantly freezes and has to actually be reset by pushes the 6 and # key while unplugging and then reinserting the power cord. You can't even turn it off or unplug it to break the freeze. HP says it has something to do with the Linksys wireless router. Any clues? I know it won't hold a manually input IP address. It constantly resets to all zeros.

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  • Beth Krantz Aug 16, 2007

    I solved it! This only occurs when the wireless router is Linksys. there is a Firmware patch on the Linksys site that has to be downloaded to be compatable. Then you have to go back to the printer properties and assign a TCP/IP port with the network's IP address. VOILA!
    ... and if that stops the freezing but doesn't bring the printer online, just uninstall and reinstall the printer software and THAT should completely eliminate the issue.

  • pksc Oct 25, 2008

    I have a D-Link wireless router and I have the same problem. Just got the printer today, install was going fine until I connected it to my wireless network and now it has completely frozen. Turning it on and off by unplugging the power over 20 times has not fixed it. Help please!

  • Anonymous Jan 14, 2009

    i feel like baby shaking whoever from hp designed this hunk

    of ****

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There is a solution posted here. https://youtu.be/_0dKC_Hoa08 Essentially update the firmware to R2011. The firmware update does not show up on the HP support site for Win 7,8 or 10 but you can download and install the firmware using a different version of windows.

Posted on Oct 01, 2017

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After finding out the hard reset code I have simply plugged my printer into my D-Link router via ethernet cable, problem solved using this workaround. Obviously this doesn't resolve the actual problem which is using wireless to connect the printer, but this solution works for me since both printer and router devices are next to each other in my office.

Posted on Jan 09, 2009

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1. The wireless configuration cannot be used with any security protocol, or it will always freeze. It might be possible with MAC address filtering, but haven't tried it.

2. You need either a cross-over cable, wired hub, or wired router. In my case, I used an old Linksys wired router which gave out DHCP addresses.

3. Un-plug the HP L7780. Un-plug your wireless router.

4. With no wireless AP on, plug in the printer. Patch it to the wired hub so it gets an address. Patch your laptop/computer to the same router and get another wired address. Alternately, you could use a hub or cross-over cable and assign the L7780 an IP and subnet mask thru the front panel such as 192.168.1.101/255.255.255.0 and assign you computer a similar IP--192.168.1.102/255.255.255.0. If a hub, plug each into hub, if a cross cable is used, connect computer and printer directly.

5. Open your browser to the printe's IP, ex. 192.168.1.101 and the embedded web applet will appear.
Go to the networking tab and click on "Wireless networking" and assign the IP, subnet mask, gateway, and DNS server (on home network, same as the gateway) of your preferred wireless network.

6. Click "apply" or submit; click thru any warnings about not being able to connect.

7. Disconnet devices from wired hub or cable and plug in your wireless AP. In my case, the L7780 did not retain the IP I assigned, but did acquire a new DHCP address from the AP.

8. Print out config sheet, open a browser, go to the assigned IP and change the settings to the ones you want.

Jeff Pearson
jpouteast@gmail.com
A+, Network+, and MCP

Posted on Jan 09, 2009

I just started having this problem today after I upgraded my old Linksys router to a WRT54GS.

Posted on Nov 06, 2008

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This is not just a Linksys issue, I am having the same problem with a new wireless router from Rukus. I have attempted to connect with various security setting, including none, and the printer freezes after it connects to the router. The printer works fine when I try to connect it to my DLink wireless router.

Posted on Nov 13, 2007

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Beth, Any details on what firmware version worked for you. Have a WRT54GS V7 -- and having same darn issue!! - Jen

Posted on Aug 21, 2007

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Thanks, Beth. I am only on my 2nd L7780 unit but am struggling with the exact same problem. Which Firmware patch did you download from the Linksys website? Thanks, Sharon

Posted on Dec 14, 2007

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Posted on Jan 02, 2017

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