How can I change my WiFi access password

In general terms you need to login into the wireless router using the admin user ID and password. Then go to the wireless security section and you can change both the encryption type (ie. WPA2 or WPA for example) and the password/pass phrase/key. See this page for help or check the manufacturers support pages for your specific router. http://setuprouter.com/ I highly recommend connecting to your wireless router using an Ethernet cable when making changes. That way you can easily recover in case something gets messed up during the reconfiguration. Make sure to document any and all changes. Remember once you change the password/pass phrase/key in the router you need to make the same change to ALL of your wireless clients.