MySQL server has gone away

Hi. I'm trying to set up a development environment on WAMP. I have a full version of Sugar11, and WAMP is using PHP 7.3.21, MySQL 5.7.31, Apache 2.4.46, Elasticsearch 7.13.2.

This thread helped get past the initial issue but editing the installer :- https://sugarclub.sugarcrm.com/dev-club/f/questions-answers/4765/sugarpro-11-0-0-zip-installer-php-sessions-configuration-error 

Then my own thread got me a but further regarding database failure:- https://sugarclub.sugarcrm.com/dev-club/f/questions-answers/4891/database-failure-creating-local-sugar-with-wamp-and-sugarent-11-0-0-dev-1-zip 

The installation finishes and the database tables are built, however the error now says :-

Your license has been altered since the last time you validated it.
Please go to the '"License Management" in the Admin screen.

Error: Could not connect to the Sugar Server. Please check your Proxy Settings value in the System Settings admin panel. Last attempted connection @ 07/01/2021 02:38pm

Note: To send record assignment notifications, an SMTP server must be configured in Email Settings.

Fatal: Your license key information is required .
Please go to the '"License Management" in the Admin screen to update your license information and restore full functionality.

I noticed "Validate user IP address:" was unchecked in the system settings panel so checked it to match our cloud and hit save...

Warning: mysqli_stmt::execute(): MySQL server has gone away in C:\Users\jk20120\Documents\GitHub\SugarEnt-11.0.0\SugarEnt-Full-11.0.0\vendor\doctrine\dbal\lib\Doctrine\DBAL\Driver\Mysqli\MysqliStatement.php on line 163

Any help would be greatly appreciated!

Thanks
James