My MacBook no longer connects to the Internet even though my wifi bar is connected and full

I don't know what I am doing wrong
My iPad can connect no problem but my MacBook doesn't
In settings the wifi is green and connected
The Ethernet is red
Fire wire is red
And Bluetooth is red
I tried changing from dhcp to dhcp with manual but nothing seems to work

Full bars would just indicate that your MacBook is connected to a wireless network. Typically when a computer can connect to the local network but not the Internet means that it is not configured properly to do so.
What may be missing in your computer's configuration is the proper IP address information.
Go to Preferences > Network > Wi-Fi > Advanced > TCP/IP tab
Configure IPv4 should be set to "Using DHCP," and the IPv4 Address, Subnet Mask, & Router fields should be populated with the appropriate IP addresses for your network.
Go to the DNS tab
There should be one or more DNS servers listed. These are either the ones provided by your ISP or ones that you set up yourself.

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