HP Printers show as TOP usage clients between 3AM and 5AM with office closed ??

[ndccpf1]

Doing some Dashboard checking and noticed two TOP clients are (older) HP printers. The building is closed so nobody onsite. And both printers were recently updated for their software/firmware via the front control panel.

Printout only comes from the two local PC owners printing their output between 8AM - 5PM..

Curious what traffic is flowing

[BrechtSchamp]

Here's some info about that port.

https://www.speedguide.net/port.php?port=5357

I'm going to guess that it's the second use case: WSD. But it seems to be destined for an IPv6 address. If you don't use IPv6 in your network, maybe you can just disable it on the printer.

[ndccpf1]

Correct no use of IPV6 for this site and the printer is Wi-Fi enabled but used only locally by the one user.

Many thanks.. will add these changes to my list of site based touch points for the many changes I need to do..

Thank you.