It does sound like the domain didn't register properly in your hosts zone records. I'd have them look at it before anything else.No, the other site is not mine. The nameservers are ok, if i go to mysite.com it is my web, with the just installed wordpress and the automatic post, so is my site. But when i go to wp-admin it redirects to another site.
another thing i just discovered is that if i install wordpress without httpswww. and just http it does not redirect.
Yep, could be n SSL or zone problem. Better check for all records to be addressed properly.No, the other site is not mine. The nameservers are ok, if i go to mysite.com it is my web, with the just installed wordpress and the automatic post, so is my site. But when i go to wp-admin it redirects to another site.
another thing i just discovered is that if i install wordpress without httpswww. and just http it does not redirect.
I also think that the problem is in your database.
On your cpanel open phpmyadmin, click on your wp database, look for 'wp_options' table, then on 'option_name' column look for 'siteurl' and check that your site name is correct.