the primary site can add www. (ahead)

If you haven’t added any subsites, convert your site back to a single site, change the URL to include the www then enable the network again. On switching to single site, delete the network tables so they are re-created with the correct data in them.

Thank you very much for your help! I will make with the new network that I’m creating.
With the first network, I have already created. I can change from phpmyadmin some value to get the same result?

It has to be changed in enough places that it’s easier to recreate the network.

I used “search and replace” plugin, to replace string in database. Everything works well.

Thanks!!

I installed the network (with subdomains) but the system told me that I should delete the www for the network name.

So I created the network without www.
I didn’t add a second website at the moment.
But I would like that the main website has the www.
Actually it doens’t have the www

So I followed the instructions of Ron @wpmuguru . I switched to a signle site (edited the wp-config, the htaccess… ) and deleted those tables
wp_site
wp_sitemeta
wp_blogs
wp_blog_versions
wp_signups
wp_registration_log

Then I added www to my domain in the worpdress settings
Then I activated again the multisite… but wordpress tell me again that the www should be deleted because my network name will be https://www.mydomain.com ..:
I’m back to the begining

So what can I do?

@fulviods It won’t permit you to do subdomains with the www on the main URL?