Hi,
In case you still have the issue, below you have the workaround developed by Zentyal for Radius module during the upgrade:
*
https://github.com/zentyal/zentyal/blob/support/6.2/main/core/src/scripts/release-upgrade#L219Also, there is a link in the documentation where explains some common issues that could occur after the upgrade:
*
https://doc.zentyal.org/en/upgrade.html#troubleshootingRegarding the message 'FATAL: Could not connect to samba LDAP server: connect: Permission denied', you need to analyse the following log files in order to identify the location of that 'permission denied'.
* /var/log/zentyal/zentyal.log
* /var/log/syslog
* /var/log/samba/samba.log
Finally, you must check if Ubuntu was upgraded and also, if some of the Zentyal modules too. Below you have the commands that you must run:
## To see if Ubuntu was upgrade
lsb_release -a
## To get the version of each module
dpkg -l | egrep 'zen(buntu|tyal)-'
## To get the packages that are not correctly installed oh held
dpkg -l | egrep -v '^ii'
--
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