After moving Wordpress, login works, but no admin access anymore

Question

After transferring a wordpress from an old ISP to a new ISP, I have trouble with the admin access / access to the dashboard.

The transfer was done by copying all files

Answer 1

I have also encountered this message after a migration.

Seems like database prefix is case-sensitive, and if it doesn't match exactly, this is what pops up when trying to access administration pages.

Make sure you check your config.php and set it exactly as your table prefix.

If you use phpMyAdmin to check the tables, you should note that all table names in database tree are displayed in lower case, while in my case the expected prefix was all upper cased.

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phpMyAdmin image: phpMyAdmin

The right prefix in the image is the one that should be used.

I used "_usermeta" table to get the prefix WP expected.