HP DJ3755 doesn't connect to Wifi

[Dovdov]

I moved to a new location. For some reason my HP DJ 3755 doesn't connect to the Wifi and the Wifi blue light keeps blinking. I have disconnected and reconnected several times, nothing helps. In HP Smart it says the printer is Offline.  I never had this problem before in other locations with my laptop. I can't get it online. 

[BeemerBiker]

3755 or 8035 

which one?

[Dovdov]

I couldn't enter into thee field the HP DJ 3755, so I left the subject as the existing one.

[BeemerBiker]

General help for new modem
1 - Restore Wi-Fi setup mode on your HP printer
2 - Wi-Fi connection is lost after router or network settings change
3 - HP Smart help with printer connection.


You may need to reset your printer.

Disconnecting the USB or ethernet cable may still leave the
printer in the wired mode. Connecting an ethernet cable may
still leave the printer in Wi-Fi mode. The Wi-Fi reset is
used to put Wi-Fi printers into setup mode. Some printers
have a semi-reset, a full reset and a factory reset. Please
refer to the user manual to find the difference. Some resets
are simple and others require a video to understand. Note that
a reset video may show a slightly different model than yours.

You may need to reset the printer: Watch this video

Wi-Fi connection

Ideally, your Wi-Fi printer should connect to the modem or router. If your network has multiple boosters / repeaters, it is possible the printer may connect randomly to any of the units. The modem needs to provide the same IP address on every connection. This rarely happens with random connects. An alternate Wi-Fi connection is Wi-Fi direct. Your laptop or smartphone prints directly to the printer and does not go through the modem.

This video may be useful to see how to connect to the router.
This video shows how how to enable Wi-Fi direct and avoid configuring the modem.

Software

HP updates software periodically. Downloads shown below may be old. You should always visit the Software and Download page to look for new releases. You may need to select an operating system (OS) first. If windows 11 is missing then use 10. You can go as far back as Windows 7, 64bit to get missing drivers. After selecting the OS click the blue Open all button to view all downloads.

Full function printer drivers can be downloaded here

Printer Reference

One or more printer reference is listed below. Typically your printer may be part of a series and use the same software and manual. The exact spec may be different.

Specifications for system or series: 3755 3720 3700 3752 3762

[Dovdov]

It's the 3755. I called HP and was instructed to hold down the start button for 5 seconds and the X button for 2 seconds, and then the start button again for 5 seconds. Also first to unplug the power cord for 30 seconds. That fixed the problem.