If you are getting a DNS issue even after adding a wildcard DNS to your domain, Please follow the below steps to fix the problem. (I have tested it and it works fine)
The below steps will help you to add a wildcard redirect to your site, if you do not want to mess up with, or are not comfortable with DNS zone editor
Simply Do the below:
Go to cpanel >> Subdomains.
Add a subdomain called *.yourwpmudomain.com
Change the document root of the subdomain to the document root of yourwpmudomain.com
That will redirect all your subdomain requests to yourwpmudomain.com and you will no longer face the DNS issues :slight_smile:
I just resolved a thread pending for a long time by this approach.
A request from the support folks, if you could, as this issue occurs a lot, please mark this post as sticky for sometime so that anyone who is looking for support or help on the issue might notice it and get benefited :slight_smile: