Have an old Mediawiki Ubuntu server running Ubuntu 14.04, with MediaWiki 1.25, PHP 5.59 and mysql 5.7.23. This server was getting old and we wanted to add certain functionality past what 1.25 could run, so we spun up a new server running 18.04, transferred everything over and I was able to get the wiki up and running. It is now at MediaWiki 1.30, PHP 7.2 and mysql 5.7. My localsettings.php have not changed and as this is all internal I am running the encryption type as clear. I have the debug log set up and everything seems to be running correctly until
userdn is: user@domain
Binding as the user
Failed to bind as user@domain
I can access the ldap server as usual.