Site#2 top level domain – Can’t login due to cookie

Hey

I have installed a multisite.

Site #1 works correctly. Super Admin has access

Site #2 works but:

• First it was a subdomain site and I could enter dashboard etc.
• Then I pulled a new top level domain site#2.com
• I set up DNS so that site shows correctly
• I changed the sites domain inside WP for this site away from subdomain and over to the top level
• Since then I am no longer signed in as super admin
• User is registered for this site
• Signing in at /wp-login I get a cookie error. I need to enable. Cookies are enabled though.
• Bottom line I now have no access to admin side of things for this site.

What am I doing wrong thx….

I suspected Complianz GDPR cookie accept but that is now turned off for the site

I wonder if wordfence does something on the site. It is active for the Network.

I am really puzzled and need help urgently