When you post again to your own message, it looks to us as if someone is helping you.
Telling us what device you have may help.
Wifi has a number of issues.
Like all devices, it has to have support either in kernel or you add to the distro. If the device is common, it may already be in so check to see. Maybe lspci or lsusb.
See how far you get by using these two pages.
Then if that fails see more details here.