how to allow guest access to my wi fi.

Solution
As Someone Somewhere said above, you can enable "Guest access" on your router so that other people can access the Internet wirelessly from whatever their wireless device is (phone, laptop, tablet, etc.). Some, if not all, routers allow you to setup a password for that guest account also, which is a good idea to use. Just make it a different password that what your regular wifi password is.
As Someone Somewhere said above, you can enable "Guest access" on your router so that other people can access the Internet wirelessly from whatever their wireless device is (phone, laptop, tablet, etc.). Some, if not all, routers allow you to setup a password for that guest account also, which is a good idea to use. Just make it a different password that what your regular wifi password is.
 
Solution