Unrequested prints almost every night

[relaxinbob]

I get three pages of what are some sort of HTTP request printed almost every night at 10-11PM.

First page

GET / HTTP/1.1

Host: x.x.x.x:9100

User-Agent: curl/7.59.0

Accept: */*

Second page

OPTIONS * RTSP/1.0

CSeq: 1

User-Agent: curl/7.59.0

Third page

HEAD / HTTP/1.1

Host: x.x.x.x:9100

User-Agent: curl/7.59.0

Accept: */*

1) What is this?

2) How do I stop it?

Thanks!!

[Kumar0307 · Accepted solution]

@relaxinbob, Welcome to the HP Support Community!

Make sure the printer is connected to a secure network.

Restart the network devices

1. Turn off the Router, Printer, and the computer/ mobile devices.
2. Wait for 60 seconds.
3. Turn on the Router first and wait for all the lights to stabilize.
4. Turn on the printer and allow it to configure itself.
5. Turn on the computer/ mobile devices.

Turn Off-web services on the printer. Refer to this document for instructions.

If the issue persists, assigning a static IP address to the printer may help.

Let me know how this goes.

If you feel my post solved your issue, please click “Accept as Solution”, it will help others find the solution. Click the “Kudos/Thumbs Up" on the bottom right to say “Thanks” for helping!

[relaxinbob]

I did a factory reset, and that seems to have eliminated the three pages by nature of disabling web services. I still get output if I open a web browser and type in the IP address of the printer with port 9100 (http://x.x.x.x:9100). The web page never loads in the browser. Only after I close that tab or the browser altogether, I get a text page output with a bunch of information about the web query. Is there some sort of diagnostic mode turned on by accident?

[B_Will]

Port 9100 is the TCP/IP printer port.

Your PC uses that when it sends printer data to that port.

You can see here where it is set.

[relaxinbob]

Thanks for the extra info. I couldn't remember if that was the web control port or the data port. Your info confirms it's the data port. I see now the web interface is port 631.