Cant connect to network from MacBook wifi disconnected ok

Launch a browser and enter this easy to remember all-numeric IP address:

1.1.1.1 and press return.

If you get the CloudFlare** splash page, your internet is working, but DNS lookup may not be working.

**CloudFlare is NOT part of the solution, they just own the easiest to remember all-numeric IP Address.

if the Router or its password has changed, DELETE the network and you will be asked to re-connect, at which time you can re-specify the correct password.