I have, I think, a modified version of wordpress which I would like to update however if I do something might go wrong. I have therefore backed up all the files and I have created a sub domain to test the update to ensure there is nothing wrong before I do a proper update. I am however getting an issue where if I try to log into sub.domain.co.uk/wp-admin it re-directs me to domain.co.uk/wp-admin. I have checked the htaccess file and even the code in the back of wordpress but I cannot find where it is re-directing me. Is there any way around this as I do need to update quite a few things and wanted to test them first.
Thanks.