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HP Color LaserJet Pro M452 User Guide - Page 125

The wireless printer loses communication when connected to a VPN

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The wireless printer loses communication when connected to a VPN ● Typically, you cannot connect to a VPN and other networks at the same time. The network does not appear in the wireless networks list ● Make sure the wireless router is turned on and has power. ● The network might be hidden. However, you can still connect to a hidden network. The wireless network is not functioning 1. Make sure that the network cable is not connected. 2. To verify if the network has lost communication, try connecting other devices to the network. 3. Test network communication by pinging the network. a. Open a command-line prompt on your computer. ● For Windows, click Start, click Run, type cmd, and then press Enter. ● For OS X, go to Applications, then Utilities, and open Terminal. b. Type ping followed by the router IP address. c. If the window displays round-trip times, the network is working. 4. Make sure that the router or printer connects to the same network that the computer connects to. a. Print a configuration page. b. Compare the service set identifier (SSID) on the configuration report to the SSID in the printer configuration for the computer. c. If the numbers are not the same, the devices are not connecting to the same network. Reconfigure the wireless setup for the printer. Perform a wireless network diagnostic test From the printer control panel, you can run a diagnostic test that provides information about the wireless network settings. NOTE: The steps vary according to the type of control panel. 2-line control panels 1. From the printer control panel, press the OK button. ENWW Solve wireless network problems 115

Section	Page
Product overview	11
Product views	12
Printer front view	12
Printer back view	13
2-line control-panel view (M452nw and M452dn models)	14
Touchscreen control-panel view (M452dw model)	15
Home screen layout	16
How to use the touchscreen control panel	17
Product specifications	18
Technical specifications	18
Supported operating systems	19
Mobile printing solutions	20
Printer dimensions	21
Power consumption, electrical specifications, and acoustic emissions	22
Operating-environment range	23
Printer hardware setup and software installation	24
Paper trays	25
Load paper into Tray 1 (multipurpose tray)	26
Introduction	26
Load paper into Tray 1 (multipurpose tray)	26
Tray 1 paper orientation	28
Load paper into Tray 2	29
Introduction	29
Load paper into Tray 2	29
Tray 2 paper orientation	32
Load and print envelopes	33
Introduction	33
Print envelopes	33
Envelope orientation	34
Supplies, accessories, and parts	35
Order supplies, accessories, and parts	36
Ordering	36
Supplies and accessories	36
Customer self-repair parts	36
Replace the toner cartridges	38
Introduction	38
Remove and replace the toner cartridges	39
Print	45
Print tasks (Windows)	46
How to print (Windows)	46
Automatically print on both sides (Windows)	47
Manually print on both sides (Windows)	47
Print multiple pages per sheet (Windows)	49
Select the paper type (Windows)	49
Additional print tasks	49
Print tasks (macOS)	51
How to print (macOS)	51
Automatically print on both sides (macOS)	51
Manually print on both sides (macOS)	51
Print multiple pages per sheet (macOS)	52
Select the paper type (macOS)	52
Additional print tasks	52
Store print jobs on the product to print later or print privately	54
Introduction	54
Before you begin	54
Set up the printer for job storage	54
Step one: Install the USB flash drive	54
Step two: Update the print driver	55
Create a stored job (Windows)	55
Print a stored job	57
Delete a stored job	58
Mobile printing	59
Introduction	59
Wi-Fi Direct and NFC Printing (wireless models only)	59
Enable or disable Wi-Fi Direct	59
Change the printer Wi-Fi Direct name	60
HP ePrint via email	61
HP ePrint software	61
AirPrint	62
Android embedded printing	62
Use walk-up USB printing (touchscreen models only)	63
Introduction	63
Step one: Access USB files on the printer	63
Step two: Print USB documents	63
Option one: Print documents	63
Option two: Print photos	64
Manage the product	65
Use HP Web Services applications	66
Change the product connection type (Windows)	67
Advanced configuration with HP Embedded Web Server (EWS) and HP Device Toolbox (Windows)	68
Advanced configuration with HP Utility for OS X	71
Open HP Utility	71
HP Utility features	71
Configure IP network settings	73
Introduction	73
Printer sharing disclaimer	73
View or change network settings	73
Rename the printer on a network	74
Manually configure IPv4 TCP/IP parameters from the control panel	75
Product security features	77
Introduction	77
Assign or change the system password using the HP Embedded Web Server	77
Economy conservation settings	79
Introduction	79
Print with EconoMode	79
Set the Sleep/Auto Off After setting	79
Set the Shut Down After delay and configure the printer to use 1 watt or less of power	80
Set the Delay Shut Down setting	81
HP Web Jetadmin	83
Update the firmware	84
Method one: Update the firmware using the control panel	84
Method two: Update the firmware using the Firmware Update Utility	85
Solve problems	87
Customer support	88
Control panel help system (touchscreen models only)	89
Restore the factory-set defaults	90
A “Cartridge is low” or “Cartridge is very low” message displays on the printer control panel	91
Change the “Very Low” settings	91
Order supplies	92
Product does not pick up paper or misfeeds	93
Introduction	93
The printer does not pick up paper	93
The printer picks up multiple sheets of paper	95
Clear paper jams	99
Introduction	99
Experiencing frequent or recurring paper jams?	99
Paper jam locations	101
Clear paper jams in Tray 1	102
Clear paper jams in Tray 2	105
Clear paper jams in the rear door and the fuser area (nw model)	107
Clear paper jams in the output bin	109
Clear paper jams in the duplexer (dn and dw models only)	110
Improve print quality	112
Introduction	112
Print from a different software program	112
Check the paper-type setting for the print job	112
Check the paper type setting (Windows)	112
Check the paper type setting (OS X)	113
Check toner-cartridge status	113
Clean the product	113
Print a cleaning page	113
Visually inspect the toner cartridge	114
Check paper and the printing environment	115
Step one: Use paper that meets HP specifications	115
Step two: Check the environment	115
Adjust color settings (Windows)	115
Adjust color settings (Windows)	116
Calibrate the printer to align the colors	117
Check the EconoMode settings	119
Try a different print driver	119
Solve wired network problems	121
Introduction	121
Poor physical connection	121
The computer is using the incorrect IP address for the printer	121
The computer is unable to communicate with the printer	121
The printer is using incorrect link and duplex settings for the network	122
New software programs might be causing compatibility problems	122
The computer or workstation might be set up incorrectly	122
The printer is disabled, or other network settings are incorrect	122
Solve wireless network problems	123
Introduction	123
Wireless connectivity checklist	123
The printer does not print after the wireless configuration completes	124
The printer does not print, and the computer has a third-party firewall installed	124
The wireless connection does not work after moving the wireless router or printer	124
Cannot connect more computers to the wireless printer	124
The wireless printer loses communication when connected to a VPN	125
The network does not appear in the wireless networks list	125
The wireless network is not functioning	125
Perform a wireless network diagnostic test	125
Reduce interference on a wireless network	126