OfficeJet 8720 - ignores ARP request so becomes offline

[srmiles]

My brand new 8720 uses the wireless to connect to the network via a static IP address. All is well and several computers can access it.

However after period of time, and if a computer loses the MAC address of the printer ( due to reboot or sleep or using the arp -d command ) then the printer appears offline.

Further investigaation shows that if a computer ( Win or Linux ) removes the arp entry for the printer, then when ping the printer, the arp request is ignored by the printer. Thus the ping will fail. However a computer is used that still has an arp cache then the ping works.

So the printer is connected to the network, but after a bit the printer stops responding to ARP requests.....

WHY ?

[sandytechy20]

@ srmiles

Welcome to the HP Forums. I would be happy to help you with your HP Officejet Pro 8720 printer. I understand that your printer shows offline, and you have already done some preliminary troubleshooting. 

Don't worry though as I have a few steps to determine the issue and find a solution as well,

• Check the connection between the printer and the Mac.
• Reset the printer.
• Delete the existing print queue and add the printer.
• Reset the printing system.

Click here to refer the document and perform troubleshooting steps to fix this issue.

If the issue is resolved and you appreciate my help,

Please click the "Accept as Solution" button and the "Thumbs Up".

Let me know how you make out.

Cheers

[srmiles]

I have tried that already. As you can see form my original statement and about using arp caches etc, I have a detailed knowledge of IP networking.

So my original question stil stands, why does the HP printer after about 12 hours does not respond to a arp request to get the MAC address ?

Simon

[Resolv_S]

Hey@srmiles,

Thanks for the response.

This appears to be a network issue between the printer and the Router.

I request you to perform the steps mentioned in the link below and check if that solves the issue.

http://hp.care/2hmUAk9

Hope this helps. Please share for more assistance.

Resolv_S

I work for HP

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