Test enviroment always forwards to main url

[THX_Ultra]

Hi maybe one of you can help, since I just don't find the error or the mistake that I made.

We ar running this board www.r-l-x.de and I wanted to clone it to have a new testing environment
since the old test board kind of crashed

So I set it up on r-l-x.biz - I changed the database entries for the forum url from r-l-x.de to r-l-x.biz - but as soon as I enter the url - it immediately redirects me to the r-l-x.de site.

Honestly I don't what is wrong, maybe one of you can give me a hint.

Thanks so much, Michael

[Seven Skins]

Check your .htaccess file

[THX_Ultra]

That was my thought too, but there is no .htaccess File in the root directory, or in the forum directory. Could this be still somewhere in the database, or maybe an issue with https?

[THX_Ultra]

Any Ideas? Could the redirect be in the Database, somewhere? We checked htaccess and any kind of domain forwarding is not the case.

Thanks for your input