SOLVED Addon domains stopped working

[uk01]

Hi one of our clients server has 2 addon domains

Both have no DNS issues, autossl issues the certificates, both were working until recently.

Now we get a 404 error. I've removed, cleared all dns zones completely, including the sub domains of the main domain. Added again, still 404.

It will not load anything on a sub domain.

Any ideas?

 

[uk01]

To answer my own question, it was Magento 2.4 root htaccess file.
We had to add an additional line to the rules

RewriteCond %{HTTP_HOST} ^www\.rootdomain\.com$

This ensured the rules only applied to the root domain, not the addon

 

[cPRex]

I'm glad you were able to resolve that issue!