this can be solved . first check your wireless router
1. check your wireless password
2. check your wireless driver and update it and run a proper virus scan . if its not working than you can reset the laptop for more help visit http://acer.technical-care.com/. i hope this may help thanks
It could be due to a number of reasons. Do you get any specific error message when you try to connect? Is the wifi switch on the laptop turned off? Try running windows troubleshooter, and restarting the router.