hp oj pro 8135e - after firmware update printer no longer uses ethernet - was working fine before

[OMD-J]

a couple days ago a firmware update occured automatically - everything was fine before the update - the hp oj pro 8135e was able to connect to my pc/network using ethernet and wireless tho i prefer ethernet. After the firmware update the ethernet connection does not work. i did network configuration report and when connected to ethernet both the wired and wi-fi connection report "gateway reachable error".   How do i get the ethernet connection to work again? I bought this printer last fall specifically because it had ethernet and wi-fi - now it only has wi-fi. Does anyone have a solution?

[rnd5]

The same thing happened to me. The Wired Ethernet connection stopped working on my  8138e around beginning of March/2025. I called HP Support and they agreed to send a replacement. Today, March/21/2025, I received the replacement, an 8135e. After setting it up, it got a firmware update a few minutes ago. Then the Wired ethernet stopped working on this replacement printer as well. Seems the reason my original 8138e stopped working was because of the same firmware update that happened around Feb/March.

The firmware version on both is: 6.23.3.71-202502131608

Revision: 6.23.3

Date Code: 202502131608

Previous version: 6.20.1.5-202403010838

[Hawks_Eye]

Hi @OMD-J, @rnd5 

Welcome to the HP Support Community! 

Thanks for posting your query! We're here to help you get back up and running.

It sounds like the recent firmware update may have caused an issue with the Ethernet functionality on your HP OfficeJet Pro 8135e. 

Here are some steps you can try to resolve the problem:

Restart Your Printer and Router:

• Turn off your printer and unplug it from the power source.
• Restart your router and wait for it to fully reboot.
• Plug the printer back in and turn it on.

Check Ethernet Cable and Port:

• Ensure the Ethernet cable is securely connected to both the printer and the router.
• Try using a different Ethernet cable or port on the router to rule out hardware issues.

Reconfigure Network Settings:

• Access the printer's control panel and navigate to the network settings.
• Reset the network settings to default and set up the Ethernet connection again.

Update Printer Firmware:

• Visit the HP Support website to check if a newer firmware version is available that might fix the issue.
• Download and install the update if available.

Assign a Static IP Address:

• Log in to your router's settings and assign a static IP address to your printer.
• Update the printer's network settings to use this static IP.

Perform a Factory Reset:

• If the issue persists, perform a factory reset on the printer. This will restore all settings to default, so you'll need to reconfigure the network settings afterward.

If this solution hits the spot, please come back and click "Accepted Solution" to help others find the answer. And if you'd like to say thanks, select "Yes" on the bottom left of the public post, as that would make our day! 

Take care, and have an amazing day!

Regards, 

Hawks_Eye

[AZCanuk]

We've had the same issue with the 8135e.  It was working on ethernet connection for months, then one day stopped.  Have spent HOURS and HOURS with support, doing the same thing every time we are handed over to another tech... they read the script "turn off this, turn on that", "reboot this, reboot that"... "remove cable", "Plug in cable" , "change cable", etc etc etc.. NOTHING WORKS. 

They also sent out a new printer which also doesn't connect to ethernet.  I connect one of our old HP6968 printers to the ethernet cable and it immediately connects.  Connect the 8135, printer is "connected" but everything still shows it "offline".  Check DHCP settings, assign a manual IP address.... NOTHING!!!!

SOMEBODY PLEASE FIX THE SOFTWARE SO THAT ETHERNET WORKS AGAIN...

Somebody messed up with a software update, our printers can't connect via ethernet and tech support doesn't know how to fix it...  

[AZCanuk]

Just ran a firmware update and still can't connect via Ethernet... guess no regression testing for this release either..  Come on HP, get your act together, you've got a significant number of users with the same issue... you sent a bad firmware update out so lets have someone take a look and fix it..

Firmware Version

6.23.5.6-202504071925

And the problem still exists... NO ETHERNET connection!!!!! 

[IaFa · Accepted solution]

Hi.  I had this issue as well.  The problem was that the 'Auto' hardware setting was not working and so I had to manually set the link speed of the port to 100 MB Full.

Ian

[riggor9999]

I had the same issue. I spent many weeks with support. The fix/workaround was to drop the Ethernet port speed to 100/100.

[OMD-J]

how do i do this? is it a setting on the printer or on the pc?

[OMD-J]

OK, you are my hero! i figured that it was on the printer settings, made the recommended change and "presto"! it finally, after 6 months, works again via ethernet - the HP support was not helpful but you in the community are wizards....  thank you, thank you, thank you....

[riggor9999]

I did it through the admin page ... network, primary ethernet, advanced tab.

My current issue is that since the last firmware, my printer won't download and install the new firmware, which is supposed to fix that bug. I called support, and they need me to do a factory reset, etc.