1. Check the Workgroup on the computer
For all connections on the LAN to work, all machines must be in the same Workgroup (group) to work. Check that two computers share the same Workgroup and can create a new Workgroup.
Step 1: Right-click Computer / This PC (1) => Properties (2) .
Step 2: Choose Change settings .
Step 3: Click on Network ID .
Step 4: Select the item This computer is part of a business network; I use it to connect to other computers at work (1) => Next (2) .
Step 5: You continue to select My company uses a network without a domain (1) => Next (2) .
Step 6: Enter the name of Workgroup (1) and click Next (2) to join.
Step 7: Click Finish to complete and restart the computer.
2. Enable Files and printer sharing
On Windows 7
Step 1: Click the Network icon (1) => Open Network and Sharing Center (2) .
Step 2: Click on Change advanced sharing settings .
Step 3: Select the Home or Work network (current profile) (1) => Turn on file and printer sharing (2) => Save changes (3) .
Step 4: With Public section you do the same as the above step.
On Windows 10
Step 1: Click Network (1) => Network & Internet settings (2) .
Step 2: Select the Sharing options item .
Step 3: Select the Private (1) => Turn on file and printer sharing (2) => Save changes (3) .
Step 4: With the Guest or Public section you do the same as the above step.
3. Turn off the firewall or antivirus program temporarily
Sometimes errors related to file or printer sharing are caused by conflicts between security software or the installation of firewalls or security software. Let's temporarily turn off the firewall or anti-virus software to eliminate the above cause.
With antivirus software
Most of the leading antivirus software now have Pause protection feature on the product so that users can set the protection pause for a given period of time.
To enable this feature, right-click on the icon of the antivirus software (1) (in my article using Kaspersky Internet Security) and select Pause protection . (2) .
Next, you set the time to turn off and click on Pause protection is done.
Turn off the Windows 7 firewall
Step 1: Click on Start (1) => search with keyword firewall (2) => Windows Firewall (3) .
Step 2: Select the item Turn Windows Firewall on or off .
Step 3: Select the Turn off Windows Firewall (not recommended) (1) in the Home or Work (Private) network location setting and Turn off Windows Firewall (not recommended) (2) in the Public network location setting => OK ( 3) .
Turn off Windows 10 firewall
Step 1: You open the tool Search (1) or using the keyboard shortcut Windows + S . Next, search for the keyword firewall (2) => select Firewall & network protection (3) .
Step 2: Choose Private network .
Step 3: Switch the Windows Defender Firewall switch to Off .
If a message appears, click Yes .
Step 4: After successfully turning off the Firewall, go back to Step 2 and find the Public network section to turn off the firewall for this item.
4. Share the printer via LAN
After completing the above steps, your printer is ready, follow the instructions in the article below to share the printer via LAN.
How to share the printer via LAN simply and quickly
With the error correction solutions that cannot find the printer in LAN, readers can fix the error and take advantage of the printer sharing feature via LAN very conveniently. Good luck!