HP M234dw wireless connection broke after moving the router or printer
CauseThe printer and the computer ended up on different networks. Source: Solve wireless network problems: The wireless connection does not work after moving the wireless router or printer, p. 92
First checkCheck that router, printer and computer use the same network.
Causes and checks
The printer and the computer ended up on different networks. Source: Solve wireless network problems: The wireless connection does not work after moving the wireless router or printer, p. 92
- Check that router, printer and computer use the same network.
- Print an information report.
- Compare its SSID with the SSID in the computer's printer configuration.
- Set up the printer's wireless connection again if they differ.
Service
If the checks above do not clear it, contact HP Customer Support, hp.com/support. Telephone numbers by country are on the flyer in the box or at www.hp.com/support. Source: Customer support, p. 125
Other M234dw problems
- Printer does not pick up paperTray settings, paper or the pickup roller.
- Printer feeds more than one sheet at a timeStack condition, paper type or overfilled tray.
- Frequent or recurring paper jamsFrequent or recurring paper jams.
- Paper jam5 causes in the manual. First: er/04: jam in the input tray or printer base.
- Whole page prints light or fadedWhole page prints light or faded
- Gray background or darker print than expectedGray background or darker print than expected
- Pages come out completely blankPages come out completely blank
- Whole page prints blackWhole page prints black
- Repeating bands down the page in filled areasRepeating bands down the page in filled areas
- Vertical streaks on the printed page2 causes in the manual. First: light vertical streaks in filled areas only.
- Shadow copies of the image repeat down the pageShadow copies of the image repeat down the page
- Toner smears or rubs off at the page edgesToner smears or rubs off at the page edges
- Printout is crooked or not centeredPrintout is crooked or not centered
- Paper comes out curled2 causes in the manual. First: positive curl: edges curl toward the printed side.
- Output stacks unevenly or falls off the trayOutput stacks unevenly or falls off the tray
- Background shading, dark vertical bands or repeating horizontal bandingBackground shading, dark vertical bands or repeating horizontal banding
- Toner specks, spatter, smears, lines or repeating marksToner specks, spatter, smears, lines or repeating marks
- Copies or scans show smudges, specks or poor quality4 causes in the manual. First: dirt on the scanner glass or the white backing under the lid.
- Printer will not connect to Wi-FiPower, radio, SSID or security information.
- Printer does not print after wireless setup is done2 causes in the manual. First: printer state, firewall, network or computer.
- Cannot add more devices over Wi-Fi DirectRange, user limit, firewall or network.
- Wireless printer drops while connected to a VPNA computer cannot normally join a VPN and other networks together.
- Wi-Fi network is missing from the wireless networks listRouter power, hidden network, range or stale list.
- Wireless network is not functioningThe network lost communication, or the devices use different networks.
- Ethernet connection is not workingNetwork, cable, security software or driver.
Sources
- User Guide, HP LaserJet MFP M232-M237 series. HP Development Company, L.P. Document c06759742, revision UG_EN (PDF created 2020-12-02), 154 pages, en. h10032.www1.hp.com (PDF). Retrieved 13 November 2026.
Page numbers are the numbers printed in the manual. Where this page and the manual differ, follow the manual.