Cookies management for chrome

Hello,
After adding matomo to our project in a DMZ environment, many users can’t access the application with a 403 error (forbidden).

By analyzing the error, we discovered that the cause is the Piwik cookies (we deleted those cookies in order to get access to the app: _pk_id, _pk_ses and _pk_uid).

The problem is only in chrome browser, do you have any idea how to deal with this problem without asking each user to delete the cookies?
.
Thanks in advance