MacBook not connecting to server

Hello

Welcome to Apple Support Communities!

If we understand your post correctly, your McBook is connecting to Wi-Fi but not to the server. We'd like to help!

Try the steps in the article below for trouble connecting to Wi-FI.

If your Mac doesn't connect to the Internet over Wi-Fi

The article below could be beneficial to you as well for help connecting to Wi-FI. There could be some kind of interference that is preventing it from connecting. 

Resolve Wi-Fi and Bluetooth issues caused by wireless interference

You can also try the recommended access points for your Wi-FI by following the steps in this article: Recommended settings for Wi-Fi routers and access points

You can also try running the Wireless diagnostics: Use Wireless Diagnostics on your Mac

Let us know if you have any questions.

Thank you for using Apple Support Communities.

Take care!