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[_junior]

When ever I connect my laptop to my router or mifii the laptop freezes but when I disconnect it ..everything  works perfectly 

[Jeet_singh]

@_junior,

Thank you for posting your query on HP Community,

Let's attempt to run an extensive system test from F2 (Please capture the failure ID for further assistance).

If the test fails, then this clearly indicates a possible hardware failure with the notebook. 

If the test passes, then this could be related to software or driver related. 

Let's try updating the BIOS on your PC and check if it helps.

Link to update the BIOS.

Also, try the steps recommended below.

Press and hold the Windows button ( lower left corner )
Choose Device Manger
Click on the network adapter to expand the list
Right click on the adapter and choose properties
Click the power management tab
if "allow the computer to turn off this device to save power" is checked please remove it and  press OK
Repeat this procedure for any additional network adapters listed.
 

Refer this article to further troubleshoot the wireless issue on your printer.

Let me know how it goes for further assistance!

That said, If the information I've provided was helpful, give us some reinforcement by clicking the Accepted Solution and Kudos buttons, that'll help us and others see that we've got the answers!

Have a great day!