Increase the maximum upload file size for your WordPress Multisite using the steps below.

By default, WordPress Multisites are limited to a maximum of 1.5MB for file uploads. This can cause filename exceeds the maximum upload size for this site. error messages when you upload a file on your site.

Increase WordPress Multisite Upload Size

  1. Log in to your WordPress Dashboard.
  2. Select My Sites > Network Admin > Dashboard from the menu.
  3. Click Settings > Network Settings
  4. Scroll down and change Max upload file size to your preferred upload size.
  5. Click Save Changes