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‎01-31-2024 06:55 PM

HP Recommended

I'm posting this because it's a hack and fix and because I'm pretty irritated at HP

 

We have a site that has several printers on it.  One of these was an HP Laserjet M400.  The printer started doing this thing where it would boot up, then crash with a 79 Service Error when plugged into the network.   We tried all of the usual nonsense.   We unplugged the printer from the network and did a factory reset, printer came up just fine - second we plugged it into the network it crashed with the 79 error.  We tried hard coding the IP at the printer console, no go.  Setting it to either a reservation or auto assignment at the DHCP server, also no go.   Finally, we took the printer off the network, and a tech took it home, plugged it into his lan, did a firmware update on it to the latest firmware.  It was fine on his home network.  Took it back, plugged it into the site network -79 error.  Finally in desperation we tried a HP Model M402dne printer - and it also crashed with a service 79 error the moment it was plugged into the network.  We even moved the printer to other ports on the switch - same problem.

 

What we finally did to "fix" it was we went into the printer services config and turned OFF IPv4.  Then the printer did not crash when plugged into the network and it setup an IPv6 link local address.  Then we downloaded and ran the latest HP printer driver installer on the 2 PC's that needed to print to this printer, and had the driver do a Search on the network whereupon it found the printer, configured a WDS port as IPv6 only, and setup the driver.  The printer then printed fine.

 

There are 3 other printers on the network.  One is an HP Laserjet Pro M404dn, another is a Ricoh MP 5055 and the last is an HP Laserjet Pro 4001dn.   All 3 of those work fine.  It is clear that this is a networking bug buried in HP's IP stack since it affects multiple printers.  And in reading the history on this forum it's also clear many people have been bitten by this bug and firmware updates have done nothing at all for many of them.

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