Nextcloud 12.0.5 External Storage (SMB) Issues

Has anyone figured out how to get external storage for SMB to work?
What ever I try to do I get the red square next to the share on the admin page. I have tested that I can access the SMB share from the terminal without an issue.

My current setup:
Centos 7
Nextcloud 12.0.5
PHP 7.0
Nextcloud LDAP authentication

In earlier installations I was able to install php-smbclient but I cant seem to find it for centos7 with php7.0