Wi-Fi on MacBook Pro 2018

If it works in the Safe Mode, try running this program when booted normally and then copy and paste the output in a reply. The program was created by Etresoft, a frequent contributor.  Please use copy and paste as screen shots can be hard to read. Click “Share Report” button in the toolbar, select “Copy to Clipboard” and then paste into a reply. This will show what is running on your computer. No personal information is shown. If the log won’t post, try posting it in Pastebin and provide a link in a reply        Pastebin

Etrecheck – System Information

First, try Downloading and Installing macOS Mojave 10.14.5 Combo Update.

Second, boot into Safe Mode to see if it solves the problem.

Third, create a new Admin user account. Reboot and log into this new account. Any change?

Fourth, try About Wireless Diagnostics.

Fifth, How to use Apple Diagnostics on your Mac - Apple Support.