My HP Officejet Pro 8600 Plus is always off line and doesn't print anymore

I use my HP Officejet Pro 8600 Plus with the wi-fi.
it worked for 3 months, in the las week it is not working anymore.
I verified the Ip , I verified the connection.. Nothing works
it is really frustrating
thanks for helping
Chiara
This question was solved.
View Solution.

Hi there @Mizia , Welcome to the HP Forums!
I saw your post about your Officejet 8600 Plus disconnecting from your wireless network, and I hope to help. I have some suggestions for you to try below that could help re-establish the connection between the two!
Try power cycling the network devices:
Turn off the printer and computer and unplug the router for 1 minute (do not press any buttons on the router).
Plug the router back in and wait another minute, next turn on the printer and computer.
Try the steps in this document:
HP Officejet Pro 251dw, 276dw, and 8600 Printer Series - Printer Does Not Maintain Wireless Connecti...
Hopefully the connection is back when you're done the steps above. If there are any issues, please let me know the details and also include with OS you're running on your computer.
Have a great Monday!
R a i n b o w 7000I work on behalf of HP
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“Thanks” for helping!
Click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution!

Similar Messages

Officejet Pro 8600 plus 'seeing' duplicate wireless networks - and refusing to connect

Greetings,
I am running a wireless network that uses a couple of Airport Expresses to extend it.
My other HP Printer (Officejet 8500) has no problem connecting to the same network.
I am running MacOS 8.2 and have downloaded/installed
Officejet-Pro-8600_v12.23.0
The Error Message = "Duplicate WiFi Networks Names...Plese check your wireless router settings. Click Change Networks to select a different network."
Folks - I have only one network.
The software is not smart enough to just choose the strongest signal and connect to it !
Thanks for any suggestions...
---alan
Very disappointed

Good thinking !
---alan

HP Officejet Pro 8600 Plus N911g Devices and Printers Page Is Slow to Open

Hello, I have HP Officejet Pro 8600 Plus, model N911g, installed as a wireless printer. I have Windows 7 64-bit. My Devices and Printers page takes over two minutes to open. While I am waiting, if I go to Print Spooler Services and click Restart, the page opens right away. Once the page is open, in the HP Officejet Pro 8600 Plus device, I ran Troubleshooter and it took about 1/2 hour to finish, and it reported and supposedly fixed a problem in the Print Spooler service. The assigned Port looks like a recovered port. However, if I restart the PC and try to open Devices and Printers again, the delay is still present. I had trouble installing the HP program including the Scan to PC functionality, because response time was so slow. Now it's installed and working, but the HP program is quite slow to open. The spinning circle spins and then stops, almost like it has given up opening the program. Then several minutes later the program opens or the requested action begins.

Check the document I linked below. Step 6 might be the solution you are looking for but it will not hurt to start from the top.
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c02817031
Binary_Zen (worked at HP )
Click the white Kudos star to say thanks
Please mark Accept As Solution if it solves your problem

HP OfficeJet Pro 8600 Plus Firmware version not current on the HP Downloads Page

My HP OfficeJet Pro 8600 Plus came with Firmware version CKP5CN1334ER which the printer update says is up-to-date. The HP downloads page shows CLP1CN1322CR as the current version. Can you tell me what the differences are in version 1334 from the one (1322) on the web page?
It would be nice to have the latest version posted for download to prevent confusion.

Same question here.

Officejet Pro 8600 Plus cannot open toolbox

I have an Officejet Pro 8600 Plus configured to use wireless networking. It prints, scans, faxes and everything is good. I can access the EWS and do everything just fine. However I cannot use the software Toolbox to access my printer settings. I cannot check ink levels or anything else using the software. Main system is on Windows 7 Ultimate x64 and my laptop wich is on Win 7 Ent. x64 is having the same issues.
Anybody else seeing this?
-bill
-bill

Here's the answer to the problem. It's a good one clearly presented.
http://h30434.www3.hp.com/t5/Printer-All-in-One-Install-Setup/Solution-to-fix-error-message-when-acc...
-bill
-bill

Hp officejet pro 8600 plus stops printing in the middle of printing

I have the HP Officejet Pro 8600 Plus, it is setup wireless. It will print fine sometimes then it will print half of a page then pause or stop ???? I am using my IMAC computer. Has anyone had this problem, I am wasting too many sheets of paper.

yes, I have the same problem... and as I print many Invoices at a time, it really slows things down. It is wireless as well. It never did this at the beginning. It's only a month old.... where's the fix please HP!!!!????

Configuring "Scan To E-mail" on HP Officejet Pro 8600 Plus N911g

This is the same issue reported by several other users in this forum to which no solution has been provided.
I have been unsuccessful in setting up the scan to e-mail option for a HP Officejet Pro 8600 Plus N911g purchased on August 12th 2012 and using the firmware CLP1CN1150CR.
I am trying to do this through the Embedded Web Server interface to the printer from an iMac running Mac OS X 10.6.8 and HP Utility 5.8.0. More specifically the page under "Scan -> Scan to E-mail -> Outgoing E-mail Profiles".
I have tried 2 different SMTP outgoing servers, each of which works well to send e-mail from the computer: Apple iCloud e-mail service (formerly known as Mobile Me, formerly known as .Mac) and AT&T Net e-mail service. I verified that the server name, port number and authentication login/password values were all correct.
When scan to e-mail is used from the printer, I get an error message: Cannot connect to server. Check server name and address.
When tested from the computer during the setup of an outgoing e-mail profile, I get an error message: The device could not send the test e-mail message. (EmailAccounts-timeout).
When I try to configure the page under "Settings -> E-mail Alerts -> E-mail Server" and use exactly the same values as the ones in the outgoing e-mail profile above, the Save and Test option fails with an error message: The device could not send the test e-mail message.
Interestingly enough, I am able to use the computer's e-mail client with the option Scan To Computer -> E-mail as PDF or E-mail as JPEG. With this option, the file is scanned and added as an attachment to a mail message from the Mail client under Mac OS X. When I press the Send button, the e-mail is sent successfully through the same SMTP server.
All the error messages seem to indicate that the printer's e-mail client software is unable to establish a connection to the SMTP server. However, it is not clear what configuration parameter is the one that could be causing the problem.
This question was solved.
View Solution.

After further research, I noticed that there are other possible default Simple Mail Transfer Protocol (SMTP) port values:
Port 25 is the standard SMTP port number.
Port 465 is the port number for SMTP over SSL, Secure SMTP (SSMTP).
Port 587 is the dedicated port number for a Mail Submission Agent (MSA) that uses a variant of the SMTP, as specified in RFC 6409, which requires that clients are authorized and authenticated to use the mail submission service.
I had been using port number 25 as this is the standard one. However, all tests were failing. Hence, I decided to try the tests with ports numbers 465 and 587.
Port number 465 failed with the same errors listed above. However, the tests passed with port number 587. After saving the successful configuration with port number 587, I tried the scan to e-mail option from the printer and it worked.
A mail submission agent (MSA) is a computer program or software agent that receives electronic mail messages from a mail user agent (MUA) and cooperates with a mail transfer agent (MTA) for delivery of the mail.
Historically in Internet mail, both MTA and MSA functions use port number 25. However, many Internet Service Providers (ISPs) and enterprise or institutional networks restrict the ability to connect to remote MTAs on port 25.
With a dedicated port 587, it is always possible for users to connect to their domain to submit new mail. Availability of a MSA on port 587 enables nomadic users to continue to send mail via their preferred submission servers even from within others' networks. Using a specific submission server is a requirement when sender policies or signing practices are enforced.
I know that many users may find the technical details boring or confusing, but I just wanted to include some background to those who actually care about this level of detail. I also wanted to provide a possible solution to other users who are experiencing the same problem.
So, in a nutshell, if the Scan To E-mail option is not working for you using port number 25, then try one of the other SMTP port numbers listed above. If none of them work, check your mail provider for other possible outgoing server port numbers.

HP OfficeJet Pro 8600 Plus - "Scan to Computer" issue on Mac OSX 10.8 or 10.9

Hi...
I have started experiencing the notorious "scan to computer not working" issue on my 1-month OfficeJet Pro 8600 Plus, after having used the feature a number of times flawlessly.
There are a lot of potential solutions mentioned in dozens of relevant posts for both Mac and Windows, e.g.:
"Failed to open a session on the device"...
Scan to computer does not work...
Problem scanning to computer with an 8600 wireless
Unable to enable print to computer...
Enable Scan to Computer - Communication Error
Officejet Pro 8600 Utility does not show my Mac computer in scan settings
A 'Connection Error' or 'No Computer Detected' Error Message Displays during Scanning
HP Wireless All-in-One Printers - Communication Error between the Scanner and Your Computer...
Etc.
However, in my case, no solution works, after several frustrating hours of trying to fix the issue, in Mac OS X Mountain Lion (10.8), or after upgrading to Maverics (10.9).
The behavior of the device points to a software issue, since:
The printer is visible on the network
The print function has been working fine
The HP Scan function works
The generic Scan function from System Preferences works (although in earlier times it did not, or it stopped working soon after invoking it)
The "Scan to Computer" option does not appear in the HP Utility screen (although occasionally, after random sequences of unistalling and installing the software, it reappears)
The HP Installer crashes before completing the installation (this is a latest symptom, apparently happening before unvoking the HP Setup Assistant, which still works fine)
As already mentioned, I have tried all possible solutions, including software and firmware updates, Apple drivers, HP drivers (full featured software), clean (un)installations, followed by computer and printer restarts. Nothing seems to work.
The "Scan to Computer" feature of the 8600 always works on my Windows 7 laptop, after initial configuration.
The next step will be returning the device for a refund, but before resorting to that, I am giving it a last chance, in (the unlikely) case there is something new I have not tried yet.
Thanks,
PNS

facman
I am linking you to an HP Support document titled “Uninstalling the Printer Software” below. I am also providing you the link to the HP software for your printer titled “HP Officejet Pro Full Feature Software and Driver - Mac OS X 10.6, OS X 10.7, OS X 10.8” below as well.
Follow the first document and uninstall the software. Reboot the computer than download and install the linked software. This should resolve your issue.
Uninstalling the Printer Software
http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&docname=c02259020
HP Officejet Pro Full Feature Software and Driver - Mac OS X 10.6, OS X 10.7, OS X 10.8
http://ftp.hp.com/pub/softlib/software12/COL44234/mp-107214-1/Officejet-Pro-8600_v12.23.0.dmg
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I work on behalf of HP
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Officejet Pro 8600 Plus won't print or scan wirelessly using Mac OS 10.

Mac OS 10.9
Wireless
My printer was working fine until today. Then when I used the control panel to scan a page I went through the steps and got to scanning and got the message I needed to enable "Scan to Computer" in the HP Utility. I went there and it was unchecked. Seems I had this problem every time I did a new scan job in the past. It wouldn't retain than check. So I checked it and after awhile I got the message "Communication Error" and to check my connections and if that didn't work restart my computer and printer. I did that and also restarted the router but it didn't help.
Then I tried printing from Word, which has always worked but it didn't this time. The printer icon on the right of the dock came up, bounced a few times then disappeared with nothing happening on the printer.
So I deleted and reinstalled the printer. No help. I downloaded and installed HP software and firmware updates. No help. I went through wireless setup. No help
BTW, all along I got good "Wireless Network Test" results. I says it's connected but nothing happens when I try any functions of the printer.
If I can find a USB cable I will try to see if wired works.
Any suggestions would be appreciated.

Hey @neoflyer,
I would like to assist you today with resolving the wireless printing and scanning issues you're experiencing on your HP Officejet Pro 8600 Plus e-All-in-One Printer on your Mac OS X 10.9 Operating System. You mentioned that you have powercycled the devices, reran the wireless setup, and uninstalled and reinstalled the software and drivers to no avail. I'm going to suggest a few additional troubleshooting steps to verify if this is a computer issue or a network issue.
Step 1: Gather the IP and Open the EWS:
1. On the screen of your printer select the wireless button:
2. Under the Wireless information you should see your IP address
3. Open up your internet browser on your Mac computer and in the website address bar just type in your IP address. Please do not include www.
4. After you enter your IP address in the website bar go to that website
5. If the website for your printer opens than that proves with 100% certainty that your printer and computer are 'talking' to each other on your wireless network. If the website fails to open than you have a network communication issue with your router.
If the website fails to open please powercycle your network again:
How to Properly Powercycle a Network:
First, unplug the power cable to your Router
Once your Router is unplugged, turn off your printer
Next, shut down your computer
After 30 seconds to 1 minutes, plug your Router back in
Next, turn on your printer
Turn on the computer
After a few moments check on your computer and ensure that the internet is working. Once it is, hit the wireless button again on the printer to see if your printer got a new IP address. Using the IP address enter it in the address bar of your internet browser and now see if the website for the printer opens.
If the website for the printer opens successfully please follow the steps below:
Step 1: Uninstall Drivers and Software:
From the computer desktop, double-click the Macintosh HD, and then click Applications.
Click the Hewlett-Packard folder.
Double-click the HP Uninstaller, and then click Continue.
Select the product to uninstall, and then click Uninstall.
When prompted, type the Administrator name and Password, and then click OK.
From the Macintosh HD menu, click Users.
Click the correct user name.
Click Library.
Click Preferences.
Click and hold the cursor on the first file that starts with "HP," and then drag the file to the Trash icon on the taskbar. Complete this step for each file that starts with "HP."
Close out of Preferences.
Click the Trash icon on the taskbar, click the Empty button, and then click OK to empty the trash.
Step 2: Verify and Repair your Disk Permissions on the Mac:
Open Macintosh HD and go to Applications
Go to the Utilities Folder
Open the Disk Utility
Select the Hard Drive volume you are using (usually on the left)
Select Verify Disk Permissions
Once that process is done, select Repair Disk Permissions
Step 3: Check for Apple Updates:
Go to Apple
Select System Preferences
Select Software Update
Click Update Now
Install your available updates
Restart your computer
Step 4: Reinstall your Software and Drivers:
1. Please click the following link to download the appropriate Mac OS X 10.9 drivers for your printer: Mac: HP Officejet Pro 8600 series Full Feature Software and Drivers
2. Once downloaded, run through the step by step screens to reinstall your network printer
3. Once the printer is reinstalled, attempt a print and a scan!
Please let me know if these steps resolved your issue. Thanks for reaching out to the HP Support Forums. Good luck!
X-23
I work on behalf of HP
Please click "Accept as Solution" if you feel my post solved your issue, it will help others find the solution.
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Windows Server 2012 Standard - HP OfficeJet Pro 8600 Plus printer not working after promoting to Domain Controller / AD Services

An associate and myself installed the built-in drivers for the HP OfficeJet Pro 8600 Plus multi-function (network) printer on a Windows Server 2012 Standard server installation and everything worked fine whenever I want to print anything directly from the
Windows Server machine (there's a reason for this, so please understand that ;) ).
We were able to print without any problems from the Windows Server 2012 machine, using the drivers from Microsoft. Mainly, because HP has not listed any specific support for Windows Server 2012, only Windows Server 2008 R2, however, the drivers that
came with Windows 2012 seem to work very well.
PROBLEM: I later had to promote the Windows Server 2012 to a Domain Controller, and created the Active Directory configurations, even enabled the Print Services. After doing all of that, the HP printer will not print anything. It's like all print
requests directly from the Windows Server go to Nil.
Has anyone encountered a problem like this before? The only thing I can think of is that after perhaps something affected printing directly once we promoted the server to being a DC, and added other features / roles. I even tried installing the
HP drivers for Windows Server 2008 R2, and the results are still the same...nothing prints. Trust me, the printer is set as the Default Printer and even when choosing to print, we make sure the HP OfficeJet Pro is selected, and is on, as other Windows
Client PC's can print to it directly.
Does anyone have any suggestions we could try? Thanks in advance.

While it is quite a while since this was posted - I can concur a similar issue exists.
We have spent the better part of a day trying to work out why other HP printers work fine but our 8620 prints are not printing and going to Nil. The print server is hosted on a shared DC. Comparing to the initial posters details, for some reason
it seems to be most commonly related to the OfficeJet Pro 8600/8610/8620/8630 series printers.
I ended up doing a print server migration from the domain controller to stand alone host and all printers now work from a single server rather than a mix. Domain controller OSes varied from 2008, 2012, 2012 R2 (tested with multiple) and only after
all of those failed then tried a stand alone server os machine as a last resort which worked fine. Printing directly from Win 7 / 8 /8.1 clients to the IP always worked.

Printing from Motorola Xoon tablet to Officejet Pro 8600 Plus via Android ePrint app

Hello!
My Officejet Pro 8600 Plus printer
- is connected to my Laptop (Win7 64bit) via USB cable
- is connected to my router via WLAN
- is configured to use ePrint with a registered mail address
My Motorola Xoom tablet3
- has Android Ice Cream Sandwich 4 installed as operating system
- has the HP ePrint Home&Biz app installed
ePrint
- ePrint app is configured
- the app identified/shows my printer as it should
- I successfully registered to ePrint on the HP website
- I am using a registered mail address for connection between app and ePrint online
As soon as I select a document on my tablet and try to print it,
- the app shows up a "rendering document" message for a short time
- a preview of the document should show up, but it doesn't!!
- I can see the selected document as "pending" print job
- no documents will be printed
- pending documents can't be deleted and remain in the tablet's display
So, I desparately need help! Why does my printer not receive or print the documents from the Xoom tablet?
Thanks a lot for your help!

I understand that It was not a problem with the connection. When dealing with wireless networks, it is always a good idea to set a static IP. It makes things more stable. The reason I told you to enter Google's DNS was not to connect you to Google. All a DNS does is create a pathway to the internet. Once any device finds the internet via the DNS it then goes where it is supposed to. It just uses the DNS as a referance for the internet. Web services should work fine with your router DNS, I have just had more success using Google's public DNS.
You never mentioned wether you did all the power cycling that I asked you too. I know it does not make sense, but power cycling everything on the network so it can all reconnect fresh, solves most issues like this one. However, if you have power cycled everything and you are still having issues, then try removing the Xoom and the printer from the network, and reconnecting them. Sometime, you have to completely remove the printer and mobile device from the networks and reattach them before they will comunicate.
If none of that works, you may need to call the cloud services department to have them take a look at the issue. You can find the number by logging into your ePrintCenter.com acount and looking under the help section. When you get an agent on the phone make sure to tell them everything you have done, so they do not have you do the same steps. Honestly at this point if it is not working the next step is a semi-full reset, which will cause you to loose your ePrint email address, as well as reset everything back to factory settings on the printer. I am not allowed to share how to semi-full the printer via the forums, however the phone agents can walk you through one.
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HP Officejet Pro 8600 Plus suddenly has scan malfunctions

I have an HP Officejet Pro 8600 Plus which has worked fine up to one week ago. Now and for no apparent reason the scan function has decided to work intermittently. Whenever I use the HP software and use the scan option, the scanner starts up and does its pre-check, starts to scan and then either stops halfway or scans the document/picture but then saves a blank file or PDF afterwards.
I have done a semi-full reset on the printer and set it up again. No change. I have completely deinstalled all HP software, rebooted, reinstalled - no change. I have stopped and started services - no change.
This is driving me crazy as I bought the printer less than six months ago and was up to now pleased with it. All other functionality is working correctly. I can copy documents in a few seconds, printing works fine.
Tried to do a firmware update - message received that it is not applicable. Updated HP Software to newest version. No change.
I am using Windows 8.1 64 bit.
I would like to try a full reset, but don't have this option only the semi-full reset, when I access the service menu. If I cannot resolve this, then I am afraid it will be the last HP printer I ever buy as this has really cheesed me off.
Please help!

I don't wish to be the proverbial bearer of ill tidings but....after spending entirely too many hours talking with several HP tech support "technicians" and on HP support chat sessions with other "technicians," I can tell you that, so far, no one at HP has a clue how to solve this problem. Several times tech support used a remote session on my workstation, but after lots of "trial and error" efforts succeded in restoring the scan function only by running the HP Print and Scan Doctor. I have found that the HP Print and Scan Doctor will always restore the scan-to-computer function - it's a nuisance, but so far nothing else will do the job.
When the 8620 quits scanning, sometimes immediately after successfully scanning multiple documents, I find that my router "sees" the HP 8620 and I can successfully ping its IP address. I can even print(!) but the 8620 seems to be oblivious to its network connection for scanning.
Tech support has offered the usual "solutions" like: turn off the 8620 and turn it on again, update thr firmware, reinstall the driver, use an Ethernet or USB connection (which defeats the purpose of Wi-Fi), and even doing what I took to be a "hard" reboot (unplug the 8620 while power is on, wait 60 seconds, hold down the power button for 30 seconds, plug the AIO in while holding the power button). So far no one has suggested re-installing Windows.
Tech support even insisted that the cause of the 8620 failing to maintain its connection to the network was my having the 8620 draw its power through a multiple outlet power strip. Willing to try just about anything short of examining chicken entrails, I now have the same failure to scan with power coming directly from a 20 amp circuit outlet.
There was a time when a short call to HP tech support fixed the rare problems with HP products.

Officejet Pro 8600 Plus ...paper TRAY wont close all the way?

My Officejet Pro 8600 Plus paper tray will not return to the proper position. This has happened TWICE now, and always about 3 weeks into using it...
I returned the first printer and replaced it with the same because we love the features and ease of use. But now, AGAIN??
I tried printing with it hanging out this time..it will print, but ....COME ON! It makes it real hard to pull out the tray that my paper lays on after printing!
I called HP support the first time, he couldnt help me. Just said replace it. There has to be something I can do a button or something? I cant see it..does anyone else know?

Zadora wrote:
Unofrtunately useless information. By trial and error I have found the only way to replace the tray is to lift the entire printer from the front at about a 20 degree angle and then the tray slides in. Very defective design. Never buy another HP.
It is possible you have a defective unit, I would suggest you Contact HP for service.
It may not be any consolation for you, but the tray works fine on my Officejet 8600 Pro Plus.
Bob Headrick, HP Expert
I am not an employee of HP, I am a volunteer posting here on my own time.
If your problem is solved please click the "Accept as Solution" button ------------V
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Printer won't print - HP Officejet Pro 8600 Plus All in 1

Hi,
Please can anyone help me ?
I have Windows 7, 64 bit HP computer with a HP Officejet Pro 8600 Plus All in 1 Printer.
It printed over the network/wireless yesterday. I then had a problem scanning to the computer so I followed advice on the HP community and uninstalled and re-installed the latest software/driver for the printer.
Today it WON'T PRINT!! The printer has a connection to my router (Plus Net Technicolor N router) and shows the little symbol on the printer screen. I tried printing my work today and it says the printer is offline - it can't be as the printer is ON and has a signal connection.
I have uninstalled, reinstalled, turned it on and off on the printer, I've restarted the computer, I've unplugged and plugged in all of it - the router, computer and printer. The computer has the green tick to say the printer is the default and it is ready. It then says to check the network connection or it maybe to do with the firewall settings, but these I haven't changed for over 1 month and I've printed loads of stuff between then and yesterday.
I desperately need my printer and short of going to have to buy a brand new one - I don't know how to fix it!!!
Please can anyone out there help me??!!!
Help!!!!!!!!!!
Thanks for any helpful advice
Victoria

Just to say as well that on the top of the 'X there is a problem printing' At the top where it says the printer - it has on it 'Fax - HP Officejet Pro 8600'
So it is trying to print from the 'Fax' part of the printer and yet when I change the printer device to the actual 'printer' part to default it always changes back to the 'fax' Officejet Pro 8600 Plus rather than the Officejet Pro 8600 Plus.
I will uninstall all the elements to the printer and then find the latest driver to the printer and start again to see if that helps.
Please help me!!!
Thank you for any helpful advice
Victoria

Now really can't print from Officejet Pro 8600 Plus

This is my second attempt to get help. The first help made it worse. I had been unable to print from my wireless printer from my MacBook Pro, iPad, or iPhone. After about 20 hours I got it to print from a cable (it sees my network but none of my devices can see it). So I posted here asking for help and was told to uninstall the software, repair disc permissions, and reinstall the software. But when I downloaded the new software my computer would not install it because it says it is for Mac System 10.7 or less and I have 10.10. So now I can't print anything at all. I need this for work. Please help me fix it for real. I can't take this any more.
This question was solved.
View Solution.

Thanks for providing that information JeanneS1. I have provided some more information that should help us resolve this issue. I know you have already spent a lot of time on this, but I am willing to continue trying to get this working properly over the wireless network.
Power cycle the router, restart the Mac and the printer.
I would print off a Configuration Page to see if the printer still has a valid IP address.
Try to access the printer's Embedded Web Server. If it connects then the printer is still on the network.
If you don't have a valid IP address, once more run the Wireless Setup Wizard on the printer.
Setup a Static IP address for the printer, this way the router will always assign the same IP address to the printer. Which should stop the disconnection.
Here is a document on this issue. But for now just follow Solution two: Assign the printer an automatic static IP address under Mac. Printer Does Not Maintain Wireless Connection.
Click the Apple menu and then click System Preferences. Click Printers & Scanners, highlight the printer name on the left side and delete the old driver, click the + sign to add the driver, you might have to click the drop down to select the printer's name to add it in. (Officejet Pro 8600 Plus)
Here is a screen shot.
Then test the printer.
You might need to update the printer's firmware if you haven't already.
How far is the printer from the router?
Here a few causes of why the printer can lose the wireless connection:
The recommended distance between the printer and the router is 1.0 meter to 1.5 meters (3 ft to 5 ft).
A nearby device that emits radio signals (such as a microwave or cordless telephone) might interfere with the wireless connection.
A virtual private network (VPN) prevents the printer from accessing the computer and wireless network.
The network connection is no longer active, or has low signal strength.
The printer goes into sleep mode or standby mode.
A firewall prevents the printer from accessing the computer and wireless network.
What kind of router are you using?
What kind of security are you using? (WPA2/WPA, WPA Personal, WEP)
What band is the router set to? (2ghz or 5ghz)
I believe by changing these settings on the router will help with this issue if it continues. You might need to contact the router company to make those changes.
Make sure that on your wireless modem, the channels for 2.4Ghz and 5Ghz are fixed and are not set to automatic !!
Select channel 6 for 2.4Ghz and channel 36 for 5Ghz frequency.
Hope this helps get you up and running again.
Thank You.
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos Thumbs Up" on the right to say “Thanks” for helping!
Gemini02
I work on behalf of HP

My HP Officejet Pro 8600 Plus is always off line and doesn't print anymore

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