MadEngineer: Is the printer not appearing in the dhcp client list on your router?

It is now - after I pulled the printer apart and put it back together again.

The situation is: The printer is visible on the network and network printing is working from android and windows.  The printer thinks it doesn't have network or internet access (it does).

Tinkerisk:

 

Maybe it has trouble with network speed auto negotiation. You could set the switch port speed related to the printer to a fixed 100M (or whatever it is from the printer side)?

 

It's not on a manged switch unfortunately, just a cheapie, but it is a gigabit switch (and new as of this week). 

However, the problem has been present with two different routers and the new switch.  I'm pretty sure it's the printer.

MikeAqua:

 

MadEngineer: Is the printer not appearing in the dhcp client list on your router?

 

It is now - after I pulled the printer apart and put it back together again.

 

The situation is: The printer is visible on the network and network printing is working from android and windows.  The printer thinks it doesn't have network or internet access (it does).

 

 

 

Have you run a firmware update?

MikeAqua:

 

allan:

 

Sometimes a close equivalent definition will work in CUPS.

 

If you do still need to go down the Raspberry Pi as a printserver route, I can can recommend using a Raspberry Pi Zero 2 w (if you can find one right now of course). Breathed new life into an ancient Brother HL-2140 laser printer that is now network attached. 

 

Thanks, do you know if a Pi with CUPs installed will support printing from a mobile app, over a network? 

I have successfully printed Word documents that were email attachments from Word on an Android phone, but I've not given it a comprehensive test.

MadEngineer:

 

Is the screen on the HP showing that lack of access?

 

Have you run a firmware update?

 

Yes it's the touch screen on the printer saying it has is no network access (or that an internal error occurred), when I try and execute any web-based function.  That's incorrect because the I can print from my phone or laptop, via the network at home.

I've updated the firmware but it didn't help with that error.

I have it going for printing, copying and scanning.   I guess it doesn't really matter.  Devices on the network can find the printer and read its state (e.g. toner cartridge levels).

In such cases, the culprit is always the DNS :-)

Tinkerisk:

 

In such cases, the culprit is always the DNS :-)

 

Would you be able to provide a bit more detail on that and how I would fix it (if possible)?

It's a meme

But short story long I'd hazard a guess that the printer does a test similar to what Windows does to check for internet connectivity.  If so, there's a non-zero chance that the DNS lookup for that service fails (example s HP drops that service altogether or you've got a DNS filter on your network), resulting in a claim of no internet access.

Painful and embarrassing experiences teach us that chance is often further from zero than we'd like.

MikeAqua:

 

Tinkerisk:

 

In such cases, the culprit is always the DNS :-)

 

 

Would you be able to provide a bit more detail on that and how I would fix it (if possible)?

 

On the printer assign IP and DNS manually. Outside the DHCP range your router is assigning.