Answer to "Why my asus laptop is running very slow"hello, It could be the motherboard , but you may have just downloaded a large number of programs that run on start up and/or have very little hard drive space left. You may also have downloaded a virus. I recommend making sure that you have a decent amount of hard drive space left. and you can also upgrade your ram
Answer to "Why my laptop is no longer connecting to internet wireless"restart the laptop and update the wireless driver and restart the laptop .and make sure you typed correct password . and if it doesn't work replace wireless card .